-act-
act
action, actor, react, transact, enact
-aud-
hear
audience, auditorium, audible, audition
-bio-
life
biology, biography, biofeedback, bionics
-cred-
believe; trust
biology, biography, biofeedback, bionics
-dem-
people
democracy, Democrat, demographics
-dic-
speak; say
dictate, predict, contradict, verdict, diction
-geo-
earth
geography, geology
-graph-
write; draw
autograph, paragraph, phonograph, photograph, telegraph
-loc-
place
allocate, locate, location
-man-
hand
manual, manufacture, manuscript, manipulate, manicure
-ped-
foot
pedal, pedestrian, pedestal, pedicure
-pop-
people; nation
population, popular, populate
-port-
carry
import, export, portable, porter, transport
-sign-
mark; sign
insignia, signal, significant, signature
-spec-, -spect-
see; look at
inspect, respect, spectacle, spectator, suspect
-tract-
pull; drag
attract, detract, contract, subtract, traction, tractor
-vid-, -vis-
see; look
evidence, video, provide, providence, visible
-volv-, -volu-
roll; motion or activity
evolve, involve, revolve, revolver, revolution
anti-
against; opposing
antiwar, anticlimax, antibiotic, antivirus
bi-
two
bisect, bimonthly, bicep, biped
co-
with; together
coexist, codependent, Combine, Cohesion
de-
away from; off; down
debrief, debug, Defrost, Deflate
dia-
through; across; between
diameter, diagonal, Dialogue, Diagnosis
in-,im-
in; into; within; no
introduce, imprison, insensitive, impatient
inter-
between; among
interpersonal, intersect, Interact, International
non-
not
nonprofit, nonfat, Nonsense, Nonfiction
post-
after; following
postgraduate, postpone, postnasal, post meridein, P.S.
pre-
before
prepay, preview, precut, pretest
re-
back; backward; again
reverse, return, recur, reject, reread
sub-
under; beneath
submarine, substandard, subzero, subdue
syl-, sym-, syn-, sys-
together; with
syllable, symmetric, cynthesis, system, Symbol, Sympathy
trans-
across
transplant, translate, transform, transfer
-able
able; likely
readable, lovable, portable, likable
-ance, -ancy
act; quality
admittance, constancy, defiance, surverllance
-ate
to become; to cause; to be
captivate, activate, donate, motivate
-fy
to make; to cause; to be
liquefy, simplify, unify, clarify
-ible
able; likely
flexible, digestible, audible, edible
-ity
state; condition
reality, sincerity, ability, humility
-ize
to make; to cause; to be
socialize, moterize, apologize, categorize
-ment
result; act of; state of being
judgment, fulfillment, treatment, punishment
-ous
characterized by
dangerous, malicious, famous, joyous
-tion
action; condition
rotation, election, direction, revolution