Latin Word	Meaning	Examples
ab-	from; away from	abnirmal, absent
ad-	to; motion toward; addition to	adapt, addict
aero-	air	aerobic, aerobiology
amphi-	both, around	amphibian, amphitheater
an-	not	anonymous, anarchy
ante-	before	antecede, antedate
anti-	against; opposite; reverse	antibiotics, antifreeze
ap-	to; nearest to	approximate
auto-	self	automatic, autograph
bene-	good	benediction, benefactor
bi-	two	bifacial, bicycle
circum-	around	circumference
co-, con-	together	coauthor, coworker
contra-	against	contradict
de-	opposite of; away from; former	deactive, deform, degrade
dis-	opposite	disagree, disarm
ex-	out; beyond; away from; former	excel, exclude, exhale
extra-	outside; beyond; besides	extraordinary
for-	not	forbid, forget, forgo
fore-	before	forecast, foreword, forestall
hyper-	more than normal; too much	hyperactive,
il-	not	illegal, illegible, illiterate
im-	into	immediate, immerse, immigrate
im-	not	imbalance, immature, immobilize
in-	not; go into	inaccurate, inactive
inter-	among; between	interaction, intercede, interchange
intra-	within	intramural, intrastate
ir-	not	irredeemable, irregular, irresponsible
mal-	wrong; bad	maladjusted, malfunction
mis-	wrong; bad; no; not	misfire, misbehave, misconduct
non-	not; opposite of	noncommittal, nonconductor
ob-	against	obstacle, obstinate, obstruct
per-	through	percolate, perceive
post-	after	postgraduate
pre-	before	preamble, prearrange
pro-	before; for; in support of	prognosis, program
pro-	forward	proceed, produce
re-	back; again	recall, recede, reflect
retro-	backward	retroactive
se-	apart	secure, secede, secession
self-	of the self	self-taught, self-respect
semi-	half, partly	semicircle, semiformal
sub-	under; beneath	subcontract, subject
super-	over	superabound, superabundant
trans-	across; over	transatlantic, transcend
ultra-	extremely	ultraliberal, ultramodern
un-	not	unable, uncomfortable, uncertain
sur-	over; above	surchange, surface

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