Prefixes, suffixes, and Greek and Latin roots

112 word parts from Rookling's word roots course, each with its meaning and examples. Knowing a part helps with words your child has never seen.

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Part	Meaning	Examples
un-, in-, im-, il-, ir-, non-, a-	not, without	unkind, impossible, nonstop
dis-	apart, not	disagree, disappear, dislike
mis-	wrongly, badly	mistake, misspell, misbehave
mal-, male-	bad, badly, evil	malfunction, malice
de-	down, away, undo	descend, defrost, deflate
re-	again, back	rebuild, return, replay
pre-	before	preview, prehistoric, preheat
post-	after	postpone, postscript
fore-	before, in front	forecast, foresee, forehead
ex-, e-	out, former	exit, export, emerge
in-, im-	in, into	inhale, import, invade
inter-	between, among	interrupt, international, interact
sub-	under, below	submarine, subway, subtitle
super-, sur-	over, above	supervise, superior, surface
trans-	across, through	transport, transfer, translate
circum-, peri-	around	circumference, perimeter, periscope
con-, com-, co-	together, with	connect, combine, cooperate
ab-	away from	absent, abnormal
ad-	toward, to	adapt, adhere, admit
extra-, ultra-	beyond	extraordinary, ultraviolet
uni-, mono-	one, single	unicycle, uniform, monotone
bi-, di-	two	bicycle, biweekly, dioxide
tri-	three	triangle, tripod, triple
quad-, tetra-	four	quadrant, quadruple, tetrahedron
cent-	hundred	century, centimeter, percent
multi-, poly-	many	multiply, multicolored, polygon
semi-, hemi-	half	semicircle, semifinal, hemisphere
omni-	all	omnivore, omnipresent
mega-, macro-	large, great	megaphone, megabyte
micro-	small	microscope, microwave, microbe
equi-	equal	equidistant, equator, equivalent
anti-, contra-, counter-	against	antidote, contradict, counteract
pro-	forward, for	progress, proceed, promote
bene-, bon-	good, well	benefit, beneficial, bonus
auto-	self	autograph, automatic, autobiography
hyper-	over, too much	hyperactive, hypersensitive
hypo-	under, too little	hypothermia, hypodermic
tele-	far	telephone, telescope, television
port	carry	portable, transport, export
ject	throw	reject, eject, project
vert, vers	turn	reverse, convert, version
tract	pull, drag	attract, tractor, subtract
duc, duct	lead	conduct, produce, introduce
mit, miss	send	transmit, dismiss, mission
pel, puls	push, drive	expel, propel, impulse
ced, cess	go, yield	proceed, exceed, access
gress	step, walk	progress, aggressive
ven, vent	come	prevent, invent, adventure
fer	carry, bring	transfer, refer, offer
cur, curr	run	current, occur, recur
mov, mot	move	remove, motion, motor
spect	see, look	inspect, spectator, respect
vis, vid	see	visible, vision, video
aud	hear	audience, audible, audition
phon	sound	telephone, microphone, symphony
dict	say, speak	predict, dictionary, verdict
scrib, script	write	describe, scribble, script
voc, vok	call, voice	vocal, vocabulary, provoke
log, logue	word, speech	dialogue, monologue, apology
leg, lect	read, choose, gather	legible, select, collect
struct	build	construct, structure, instruct
ten, tain	hold	contain, retain, tenant
cap, capt, cept	take, seize	capture, accept, intercept
pos, pon	place, put	position, deposit, opponent
plic, ply	fold, bend	complicated, duplicate, reply
tend, tens	stretch	extend, tension, pretend
sta, stat	stand	stable, station, statue
fact, fect, fic	make, do	factory, effect, artificial
fin	end, limit	final, finish, define
pend	hang, weigh	suspend, pendant, depend
grad	step	gradual, graduate, grade
loc	place	locate, local, location
cred	believe	credit, incredible, credible
path	feeling, suffering	sympathy, empathy, pathetic
psych	mind	psychology, psychologist
sens, sent	feel	sensitive, sense, sentiment
jud, jus	law, right	judge, justice, justify
val	strong, worth	valid, value, evaluate
ver	truth	verify, verdict
liber	free	liberty, liberate
vol	wish, will	voluntary, volunteer
anim	life, spirit	animal, animate, unanimous
bio	life	biology, biography
geo	earth	geography, geology
hydr, aqua	water	hydrant, dehydrated, aquarium
therm	heat	thermometer, thermos, thermal
photo	light	photograph, photosynthesis
chron	time	chronological, synchronize
ped, pod	foot	pedal, pedestrian, tripod
man, manu	hand	manual, manufacture, manuscript
mort	death	mortal, immortal
vor	eat	carnivore, herbivore, devour
terr	earth, land	territory, terrain, terrarium
astro, aster	star	astronaut, asteroid, astronomy
viv, vit	live	survive, vivid, vital
nov	new	novel, novice, renovate
rupt	break	interrupt, erupt, rupture
-able, -ible	able to be	readable, flexible, visible
-ful	full of	careful, thoughtful, graceful
-less	without	careless, fearless, endless
-ous, -ious	full of, having	dangerous, curious, famous
-ness	state of being	kindness, darkness, sadness
-ment	act or result of	agreement, movement, amazement
-tion, -sion	act or state of	action, decision, explanation
-ify, -ize	to make	simplify, magnify, modernize
-er, -or, -ist	one who	teacher, actor, scientist
-ic, -al	relating to	heroic, musical, natural
-ive	tending to	active, creative, protective
-ity	state or quality	equality, activity, electricity
-ship, -hood, -dom	state, condition, realm	friendship, childhood, freedom
-cide	killing, killer	insecticide, pesticide
-ology	study of	biology, zoology, geology

See how to use roots on test day in the word roots guide.