Word Formation: Prefixes, Suffixes & Root Words | GPN

Master word formation through prefixes, suffixes, and root words. Understand how English words are built and learn to decode unfamiliar words by analyzing their parts. Essential for vocabulary expansion and comprehension.

✅ Recommended for: Class 10-12 (Advanced) | Crucial for competitive exams

---

1. What Are Prefixes, Suffixes & Root Words?

Root Words: Basic words that give main meaning (e.g., "write," "read," "play").

Prefixes: Added to beginning of root words to change meaning (e.g., "re-" means again: rewrite).

Suffixes: Added to end of root words to change part of speech or meaning (e.g., "-er" makes noun: writer).

Component	Position	Function	Examples	New Word & Meaning
Root Word	Core/base	Provides basic meaning	happy, write, agree	N/A (base words)
Prefix	Beginning	Changes meaning	un- (not), re- (again), pre- (before)	unhappy (not happy), rewrite (write again)
Suffix	End	Changes part of speech	-ness (noun), -ful (adjective), -ly (adverb)	happiness (noun), joyful (adjective), quickly (adverb)
Both	Both ends	Changes meaning & part of speech	un- + happy + -ness	unhappiness (noun: state of not being happy)

2. Common Prefixes

Prefix	Meaning	Origin	Examples	Word Formation
a-, an-	not, without	Greek	atypical, anaerobic	a + typical = not typical
ab-	away from	Latin	absent, abnormal	ab + sent = away from being present
anti-	against, opposite	Greek	antibiotic, antifreeze	anti + biotic = against life (germs)
auto-	self	Greek	autobiography, automatic	auto + biography = self life story
bi-	two	Latin	bicycle, bilingual	bi + cycle = two wheels
bio-	life	Greek	biology, biography	bio + logy = study of life
circum-	around	Latin	circumference, circumstance	circum + ference = carrying around
co-	with, together	Latin	cooperate, coordinate	co + operate = work together
com-, con-	with, together	Latin	combine, connect	com + bine = two together
contra-	against, opposite	Latin	contradict, contrary	contra + dict = speak against
de-	reverse, remove	Latin	deactivate, decrease	de + activate = make inactive
di-	two	Greek	dilemma, dioxide	di + oxide = two oxygen atoms
dis-	not, opposite of	Latin	disagree, disappear	dis + agree = not agree
en-, em-	cause to, put into	Latin	enable, empower	en + able = make able
ex-	out of, former	Latin	export, ex-president	ex + port = carry out
extra-	beyond, outside	Latin	extraordinary, extracurricular	extra + ordinary = beyond ordinary
fore-	before, front	English	forecast, forehead	fore + cast = cast before
geo-	earth	Greek	geography, geology	geo + graphy = earth writing
hyper-	over, excessive	Greek	hyperactive, hypersensitive	hyper + active = over active
il-, im-, in-, ir-	not	Latin	illegal, impossible, inactive, irregular	il + legal = not legal
im-, in-	in, into	Latin	import, insert	im + port = carry in
inter-	between, among	Latin	international, interact	inter + national = between nations
intra-	within	Latin	intramural, intravenous	intra + mural = within walls
macro-	large	Greek	macroeconomics, macrobiotic	macro + economics = large-scale economics
mal-	bad, badly	Latin	malfunction, malnutrition	mal + function = bad function
micro-	small	Greek	microscope, microwave	micro + scope = small viewer
mid-	middle	English	midnight, midway	mid + night = middle of night
mis-	wrong, badly	English	misunderstand, misbehave	mis + understand = understand wrongly
mono-	one	Greek	monologue, monotone	mono + tone = one tone
multi-	many	Latin	multicultural, multimedia	multi + cultural = many cultures
non-	not	Latin	nonfiction, nonsense	non + sense = not making sense
omni-	all	Latin	omnipotent, omnipresent	omni + potent = all powerful
over-	too much, above	English	overcook, overlook	over + cook = cook too much
pan-	all	Greek	panorama, pandemic	pan + demic = all people
para-	beside, beyond	Greek	parallel, paranormal	para + normal = beyond normal
per-	through, completely	Latin	perceive, perfect	per + fect = made thoroughly
peri-	around	Greek	perimeter, periphery	peri + meter = measure around
poly-	many	Greek	polygon, polytechnic	poly + gon = many angles
post-	after	Latin	postpone, postgraduate	post + pone = put after
pre-	before	Latin	preview, prevent	pre + view = view before
pro-	forward, for	Latin	proceed, promote	pro + ceed = go forward
pseudo-	false	Greek	pseudonym, pseudoscience	pseudo + nym = false name
re-	again, back	Latin	rewrite, return	re + write = write again
retro-	backward, back	Latin	retrospect, retroactive	retro + spect = look back
semi-	half, partly	Latin	semicircle, semifinal	semi + circle = half circle
sub-	under, below	Latin	submarine, subway	sub + marine = under sea
super-	above, beyond	Latin	supernatural, superpower	super + natural = beyond natural
syn-	with, together	Greek	synonym, synchronize	syn + onym = same name
tele-	far, distant	Greek	television, telephone	tele + vision = far seeing
trans-	across, beyond	Latin	transport, transform	trans + port = carry across
tri-	three	Greek/Latin	triangle, tricycle	tri + angle = three angles
ultra-	beyond, extreme	Latin	ultraviolet, ultrasonic	ultra + violet = beyond violet
un-	not, reverse	English	unhappy, undo	un + happy = not happy
under-	below, insufficient	English	underestimate, underwater	under + estimate = estimate below
uni-	one	Latin	unicycle, uniform	uni + form = one form
vice-	in place of	Latin	vice-president, vice-principal	vice + president = in place of president
anti-	against	Greek	antivirus, antisocial	anti + virus = against virus
arch-	chief, principal	Greek	archbishop, architect	arch + bishop = chief bishop
be-	make, cause to be	English	befriend, belittle	be + friend = make friend
co-	together	Latin	coexist, cooperate	co + exist = exist together
counter-	against, opposite	Latin	counterattack, counteract	counter + act = act against
de-	down, away	Latin	descend, degrade	de + scend = climb down
dis-	apart, away	Latin	dismiss, distract	dis + miss = send away
en-	put into, make	Latin	enlarge, enlighten	en + large = make large
ex-	out, from	Latin	expel, exhale	ex + hale = breathe out
fore-	before	English	foresee, forewarn	fore + see = see before
in-	in, into	Latin	invade, include	in + vade = go into
inter-	between	Latin	interrupt, intervene	inter + rupt = break between
mis-	wrongly	English	mislead, misinform	mis + lead = lead wrongly
out-	beyond, more than	English	outrun, outlive	out + run = run beyond
over-	excessive	English	overeat, overwork	over + eat = eat too much
post-	after	Latin	postscript, postnatal	post + script = written after
pre-	before	Latin	prehistoric, precaution	pre + historic = before history
pro-	forward	Latin	proclaim, progress	pro + claim = cry forward
re-	back, again	Latin	rebuild, reconsider	re + build = build again
sub-	under	Latin	subconscious, subtitle	sub + conscious = under consciousness
super-	above	Latin	supervisor, superimpose	super + vise = see above
trans-	across	Latin	transatlantic, transcribe	trans + atlantic = across Atlantic
un-	not	English	unable, uncertain	un + able = not able
under-	below	English	underground, underdeveloped	under + ground = below ground
up-	upward	English	upgrade, uplift	up + grade = move up grade
with-	against, back	English	withdraw, withstand	with + draw = draw back

3. Common Suffixes

Suffix	Function	Changes To	Examples	Word Formation
-able, -ible	able to be	adjective	readable, flexible	read + able = able to be read
-age	action/process	noun	marriage, storage	marry + age = state of being married
-al	relating to	adjective	musical, personal	music + al = relating to music
-ance, -ence	state/quality	noun	importance, difference	import + ance = state of being important
-ant, -ent	one who	noun	assistant, student	assist + ant = one who assists
-ar, -er, -or	one who	noun	liar, teacher, actor	teach + er = one who teaches
-ary	relating to	adjective/noun	dictionary, honorary	diction + ary = book of words
-ate	make/cause	verb	activate, celebrate	active + ate = make active
-ation, -ition	action/state	noun	explanation, competition	explain + ation = act of explaining
-cy	state/quality	noun	accuracy, privacy	accurate + cy = state of being accurate
-dom	state/condition	noun	freedom, kingdom	free + dom = state of being free
-en	made of/make	adjective/verb	wooden, sharpen	wood + en = made of wood
-ence	state/quality	noun	excellence, patience	excel + lence = state of excelling
-er, -or	one who/thing that	noun	baker, generator	bake + er = one who bakes
-ery	place of/collective	noun	bakery, machinery	bake + ery = place for baking
-ese	nationality/language	adjective/noun	Chinese, Japanese	China + ese = of China
-ess	female	noun	actress, waitress	actor + ess = female actor
-est	superlative	adjective	tallest, fastest	tall + est = most tall
-ful	full of	adjective	beautiful, careful	beauty + ful = full of beauty
-fy	make/cause to be	verb	simplify, beautify	simple + fy = make simple
-hood	state/condition	noun	childhood, brotherhood	child + hood = state of being child
-ial	relating to	adjective	presidential, commercial	president + ial = relating to president
-ian	relating to/one who	adjective/noun	musician, Canadian	music + ian = one who plays music
-ic, -ical	relating to	adjective	historic, musical	history + ic = relating to history
-ify	make/cause	verb	classify, identify	class + ify = make into classes
-ile	relating to/capable	adjective	fragile, mobile	frag + ile = capable of breaking
-ion	action/process	noun	action, discussion	act + ion = process of acting
-ish	somewhat like	adjective	childish, reddish	child + ish = like a child
-ism	belief/system	noun	capitalism, realism	capital + ism = system based on capital
-ist	one who practices	noun	artist, scientist	art + ist = one who practices art
-ity	state/quality	noun	creativity, ability	create + ivity = state of creating
-ive	having nature of	adjective	creative, active	create + ive = having creating nature
-ize, -ise	make/become	verb	realize, organize	real + ize = make real
-less	without	adjective	hopeless, endless	hope + less = without hope
-let	small	noun	booklet, droplet	book + let = small book
-like	resembling	adjective	childlike, lifelike	child + like = resembling child
-logy	study of	noun	biology, psychology	bio + logy = study of life
-ly	in manner of	adverb	quickly, happily	quick + ly = in quick manner
-ment	action/result	noun	development, movement	develop + ment = result of developing
-ness	state/quality	noun	happiness, kindness	happy + ness = state of being happy
-or	one who/thing that	noun	director, calculator	direct + or = one who directs
-ous, -ious	full of	adjective	dangerous, curious	danger + ous = full of danger
-ship	state/skill	noun	friendship, leadership	friend + ship = state of being friends
-sion, -tion	state/action	noun	tension, creation	create + tion = act of creating
-some	characterized by	adjective	tiresome, awesome	tire + some = characterized by tiring
-th	state/quality	noun	warmth, growth	warm + th = state of being warm
-ty	state/quality	noun	safety, loyalty	safe + ty = state of being safe
-ure	action/result	noun	pressure, failure	press + ure = result of pressing
-ward	in direction of	adverb/adjective	forward, homeward	for + ward = toward the front
-wise	in manner of	adverb	clockwise, otherwise	clock + wise = in direction of clock hands
-y	characterized by	adjective	sunny, funny	sun + y = characterized by sun
-acious	inclined to	adjective	tenacious, voracious	tenac + ious = inclined to hold
-ation	action/process	noun	information, formation	inform + ation = act of informing
-ative	relating to	adjective	talkative, imaginative	talk + ative = relating to talking
-eer	one who	noun	engineer, volunteer	engine + eer = one who works with engines
-escence	state of becoming	noun	adolescence, convalescence	adolesc + ence = state of growing up
-escent	becoming	adjective	adolescent, fluorescent	adolesc + ent = becoming adult
-esque	in style of	adjective	picturesque, statuesque	picture + esque = in picture style
-ette	small/female	noun	kitchenette, suffragette	kitchen + ette = small kitchen
-fic	making/causing	adjective	terrific, scientific	terri + fic = causing terror
-form	in shape of	adjective	uniform, transform	uni + form = one shape
-gram	something written	noun	telegram, diagram	tele + gram = far writing
-graph	something written	noun	autograph, photograph	auto + graph = self writing
-hedron	geometric solid	noun	polyhedron, tetrahedron	poly + hedron = many faces
-iatric	healing	adjective	psychiatric, pediatric	psych + iatric = mind healing
-ician	specialist	noun	physician, musician	physic + ian = body specialist
-iferous	bearing/producing	adjective	carboniferous, pestiferous	carbon + iferous = producing carbon
-itis	inflammation	noun	tonsillitis, arthritis	tonsill + itis = inflammation of tonsils
-ive	tending to	adjective	creative, destructive	create + ive = tending to create
-logue, -log	speech/study	noun	dialogue, catalog	dia + logue = speech across
-mania	obsession	noun	bibliomania, megalomania	biblio + mania = book obsession
-meter	measuring device	noun	thermometer, speedometer	thermo + meter = heat measurer
-metry	measurement	noun	geometry, symmetry	geo + metry = earth measurement
-nomy	system of laws	noun	astronomy, economy	astro + nomy = star laws
-oid	resembling	adjective	humanoid, asteroid	human + oid = resembling human
-ology	study of	noun	biology, psychology	bio + logy = study of life
-oma	tumor/swelling	noun	carcinoma, glaucoma	carcin + oma = cancer tumor
-onym	name/word	noun	synonym, antonym	syn + onym = same name
-opathy	disease	noun	neuropathy, homeopathy	neuro + pathy = nerve disease
-opia	vision condition	noun	myopia, hyperopia	my + opia = nearsightedness
-osis	condition/process	noun	hypnosis, osmosis	hypn + osis = sleep condition
-phobia	fear of	noun	arachnophobia, claustrophobia	arachno + phobia = fear of spiders
-scope	instrument for viewing	noun	microscope, telescope	micro + scope = small viewer
-tome	cutting instrument	noun	microtome, epitome	micro + tome = small cutter
-tomy	cutting operation	noun	anatomy, lobotomy	ana + tomy = cutting up
-tude	state/quality	noun	gratitude, altitude	grati + tude = state of thankfulness
-ward	direction	adverb/adjective	backward, upward	back + ward = toward back
-ways	manner/direction	adverb	sideways, lengthways	side + ways = to the side

4. Essential Greek & Latin Root Words

Root Word	Meaning	Origin	Examples	Word Analysis
act	do, drive	Latin	action, react, transact	re + act = do again
aqua	water	Latin	aquarium, aquatic, aqueduct	aqua + duct = water channel
aud	hear	Latin	audio, audience, auditorium	aud + ience = hearers
auto	self	Greek	automatic, automobile, autobiography	auto + bio + graphy = self life writing
bene	good, well	Latin	benefit, benevolent, benefactor	bene + fact + or = good doer
bio	life	Greek	biology, biography, biosphere	bio + logy = study of life
cent	hundred	Latin	century, percent, centimeter	cent + ury = hundred years
chron	time	Greek	chronology, chronic, synchronize	chron + ology = study of time
cred	believe	Latin	credit, incredible, credential	in + cred + ible = not believable
dict	say, speak	Latin	dictionary, predict, contradict	pre + dict = say before
duc, duct	lead	Latin	conduct, educate, produce	pro + duce = lead forward
fac, fact	make, do	Latin	factory, manufacture, facilitate	manu + fact + ure = hand made
form	shape	Latin	formula, transform, uniform	trans + form = change shape
geo	earth	Greek	geography, geology, geometry	geo + metry = earth measurement
graph	write, draw	Greek	graphite, autograph, paragraph	para + graph = beside writing
hydro	water	Greek	hydrate, hydroelectric, dehydrate	de + hydro + ate = remove water
ject	throw	Latin	reject, project, inject	in + ject = throw in
log, logue	word, study	Greek	dialogue, logic, biology	bio + logy = study of life
luc, lum	light	Latin	lucid, illuminate, luminous	il + lum + inate = put into light
man, manu	hand	Latin	manual, manufacture, manuscript	manu + script = hand written
meter, metr	measure	Greek	thermometer, geometry, symmetry	thermo + meter = heat measure
mit, miss	send	Latin	transmit, mission, admit	trans + mit = send across
morph	form, shape	Greek	metamorphosis, morphology, amorphous	meta + morph + osis = change form
ped, pod	foot	Latin/Greek	pedal, pedestrian, podium	ped + estrian = one who goes on foot
phil	love	Greek	philosophy, philanthropy, bibliophile	biblio + phile = book lover
phon	sound	Greek	telephone, phonics, symphony	tele + phone = far sound
photo	light	Greek	photograph, photosynthesis, photon	photo + synthesis = light putting together
port	carry	Latin	transport, portable, import	trans + port = carry across
psych	mind	Greek	psychology, psychic, psychotherapy	psych + ology = study of mind
scope	look, see	Greek	microscope, telescope, periscope	tele + scope = far see
scrib, script	write	Latin	scribble, manuscript, describe	de + scribe = write down
spect	look	Latin	spectator, inspect, perspective	in + spect = look into
struct	build	Latin	structure, construct, destruct	con + struct = build together
tele	far	Greek	television, telephone, telegraph	tele + vision = far seeing
therm	heat	Greek	thermometer, thermal, thermostat	thermo + stat = heat standing
tract	pull, drag	Latin	tractor, attract, contract	at + tract = pull toward
vac	empty	Latin	vacuum, vacant, evacuate	e + vacu + ate = make empty
vid, vis	see	Latin	video, visible, vision	re + vise = see again
voc	voice, call	Latin	vocal, vocation, advocate	ad + voc + ate = call to
anthrop	human	Greek	anthropology, philanthropy, misanthrope	anthrop + ology = study of humans
arch	ruler, chief	Greek	monarch, hierarchy, archaeology	mono + arch = one ruler
aster, astr	star	Greek	astronomy, asteroid, disaster	dis + aster = bad star
biblio	book	Greek	bibliography, bibliophile, Bible	biblio + phile = book lover
cardi	heart	Greek	cardiac, cardiology, cardiovascular	cardio + vascular = heart vessels
cide	kill	Latin	homicide, suicide, pesticide	pest + i + cide = pest killer
cosm	universe, order	Greek	cosmos, cosmic, cosmopolitan	cosmo + politan = universe citizen
crac, crat	rule, power	Greek	democracy, autocrat, bureaucrat	demo + cracy = people rule
derm	skin	Greek	dermatology, epidermis, hypodermic	epi + dermis = upon skin
gam	marriage	Greek	monogamy, polygamy, bigamy	mono + gamy = one marriage
gen	birth, race	Greek	generate, genetics, genealogy	gene + alogy = study of birth lines
gnos	know	Greek	diagnosis, prognosis, agnostic	dia + gnosis = through knowledge
gram	something written	Greek	telegram, diagram, program	dia + gram = through writing
hetero	different	Greek	heterogeneous, heterosexual, heteronym	hetero + geneous = different kind
homo	same	Greek	homogeneous, homosexual, homonym	homo + geneous = same kind
hydr	water	Greek	hydrant, hydraulic, hydrogen	hydro + gen = water producing
logy	study of	Greek	biology, geology, psychology	psycho + logy = study of mind
nym	name	Greek	synonym, antonym, pseudonym	pseudo + nym = false name
path	feeling, disease	Greek	sympathy, pathology, empathy	sym + pathy = together feeling
phob	fear	Greek	phobia, claustrophobia, arachnophobia	claustro + phobia = fear of closed spaces
soph	wisdom	Greek	philosophy, sophisticated, sophomore	philo + sophy = love of wisdom
theo	god	Greek	theology, theocracy, atheist	a + theo + ist = without god believer

5. Word Formation Patterns

Pattern	Structure	Example	Analysis	Meaning
Prefix + Root	Prefix modifies root meaning	un + happy	un- (not) + happy	not happy
Root + Suffix	Suffix changes part of speech	happy + ness	happy + -ness (noun suffix)	state of being happy
Prefix + Root + Suffix	Both modify root	un + happy + ness	un- (not) + happy + -ness (noun)	state of not being happy
Root + Root	Two roots combined	bio + graphy	bio (life) + graphy (writing)	life writing
Compound Words	Two complete words joined	note + book	note + book	book for notes
Blended Words	Parts of two words combined	brunch	breakfast + lunch	late morning meal
Acronyms	Initial letters form word	NASA	National Aeronautics and Space Administration	space agency
Back-formation	Remove suffix to create new word	editor → edit	Remove -or from editor	to prepare for publication

6. Exam-Focused Word Formation

Exam Task	What to Do	Example Question	Strategy
Vocabulary Questions	Identify word meaning from parts	"What does 'benevolent' mean?" (bene = good, vol = wish)	Break into parts: bene (good) + vol (wish) + ent (adjective) = wishing good
Word Derivation	Form new words from given roots	"Form noun from 'happy'"	Add appropriate suffix: happy → happiness (-ness for abstract nouns)
Error Correction	Correct wrong word formation	"He spoke very loud." (should be loudly)	Identify part of speech needed: adverb needed for verb 'spoke' → loudly
Reading Comprehension	Decode unfamiliar words	Passage contains "photosynthesis"	Analyze: photo (light) + syn (together) + thesis (putting) = using light to create food
Cloze Test	Choose correctly formed word	"He showed great ___ (kind) to animals."	Need noun form: kind → kindness

🎯 Word Formation Challenge

Analyze the word parts or form new words as required.

1. What does "autobiography" mean based on its parts? (auto = self, bio = life, graph = write)

Answer: self + life + writing = a story of one's own life written by oneself

2. Form the noun from "happy" by adding the correct suffix.

Answer: happiness (-ness suffix forms abstract nouns from adjectives)

3. What prefix means "again" and can be added to "write"?

Answer: re- (rewrite = write again)

4. What does the root "chron" mean, as in "chronology"?

Answer: time (chronology = study of time sequence)

5. Form the adverb from "quick" by adding the correct suffix.

Answer: quickly (-ly suffix forms adverbs from adjectives)

8. Memory Aids & Tips

Prefix Patterns:
• Negative prefixes: un-, in-, im-, il-, ir-, non-, dis- (mean "not")
• Number prefixes: uni-, mono- (1), bi-, di- (2), tri- (3), multi-, poly- (many)
• Time prefixes: pre- (before), post- (after), re- (again)
• Direction prefixes: sub- (under), super- (over), inter- (between), trans- (across)
Group prefixes by meaning category for easier memorization.

Suffix Functions:
• Noun suffixes: -ness, -ity, -tion, -ment, -hood, -ship (form nouns)
• Adjective suffixes: -ful, -less, -ous, -ive, -able, -ic (form adjectives)
• Verb suffixes: -ate, -ify, -ize, -en (form verbs)
• Adverb suffix: -ly (forms adverbs from adjectives)
Suffix determines part of speech - learn which suffix makes which part.

Root Word Strategy:
• Learn Greek roots for scientific/technical terms (bio, geo, psych, chron)
• Learn Latin roots for common words (act, form, port, spect)
• Create word families: act → action → active → activity → activate
• Use flashcards with root on front, meaning and examples on back
Knowing 50 common roots can help you understand 1000+ words.

📝 Practice Word Formation

Master word formation with our comprehensive worksheet covering prefixes, suffixes, root words, and word analysis!

Go to Word Formation Worksheet

Includes answer key • Prefix/suffix identification • Root word analysis • Word building exercises • Exam-style questions