-
a-, an-
- - without
- - Ex: amoral, anaerobic
-
ante-
- - before
- - Ex: antedate (to be of older date than), antechamber (waiting room)
-
anti-
- - against, opposing
- - Ex: antipollution, antipathy.
-
auto-
- - self
- - Ex: autobiography, autopilot
-
bene-
- - good or well
- - Ex: beneficial, benediction (an utterance of good wishes)
-
bi-
- - two
- - Ex: bicycle, bipolar
-
cen-
- - hundred, hundredth
- - Ex: century, centimeter
-
circum-
- - around
- - Ex: circumnavigate, circumvent (to go around or bypass)
-
co-
- - together, with
- - Ex: coauthor, copilot
-
com-
- - bring together
- - Ex: complete, compile
-
contra-
- - against
- - Ex: contradict, contraband (goods imported or exported illegally)
-
counter-
- - opposite, against
- - Ex: counterclockwise, counterterrorism
-
de-
- - away from, down, undoing
- - Ex: deactivate, detract
-
dis-
- - the opposite, undoing
- - Ex: disagree, disarm
-
ex-
- - out of, away from
- - Ex: exhale, expropriate (to dispossess (a person) of ownership)
-
hetero-
- - different
- - Ex: heterogeneous, heterodox (not in accordance with established)
-
homo-
- - same
- - Ex: homogenized, homonym
-
hyper-
- - above, excessive
- - Ex: hyperactive, hypertension
-
il-/in-/ir-
- - not
- - Ex: illiquid, inaudible, irregular
-
inter-
- - between
- - Ex: intercontinental, interject
-
intra-
- - within
- - Ex: intramural, intranet
-
mal-
- - bad or ill
- - Ex: maladjusted, malevolent (wishing evil or harm to another)
-
micro-
- - small
- - Ex: microbiology, microscope
-
milli-
- - thousand
- - Ex: millennium, millisecond
-
mis-
- - bad, wrong
- - Ex: misbehave, misunderstand
-
mono-
- - one
- - Ex: monosyllable, monorail
-
neo-
- - new
- - Ex: neoclassical, neophyte (a beginner or novice)
-
non-
- - not
- - Ex: nonessential, nonconformist
-
paleo-
- - old, ancient
- - Ex: paleontology, paleobiology
-
pan-
- - all, all over
- - Ex: pandemic, panorama
-
poly-
- - many
- - Ex: polygon, polynomial
-
post-
- - after, behind
- - Ex: postpone, postnasal
-
pre-
- - before
- - Ex: preview, premeditate
-
pro-
- - forward, before, in favor of
- - Ex: promote, projection
-
re-
- - back, again
- - Ex: rewrite, retract (to draw back or in)
-
retro-
- - backward
- - Ex: retrofit, retroactive
-
semi-
- - half
- - Ex: semiannual, semifinal
-
sub-
- - under, below
- - Ex: submarine, subway
-
super-
- - above, over
- - Ex: supersede (to succeed to the position), supervise
-
sym-/syn-
- - together, at the same time
- - Ex: symbiosis, synchronize
-
tele-
- - from a distance
- - Ex: telecommute, telemetry (to transmit)
-
therm-
- - heat
- - Ex: thermal, thermometer
-
tor-
- - twist
- - Ex: torsion, contort (to become twisted, distorted)
-
trans-
- - across
- - Ex: transcontinental, transatlantic
-
un-
- - not
- - Ex: unannounced, unoticed
-
uni-
- - one
- - Ex: unicycle, unify
-
vert-
- - change
- - Ex: revert, reverse
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