-act-
act
action, actor, react, transact, enact
-aud-
hear
audience, auditorium, audible, audition
-bio-
life
biology, biography, biofeedback, bionics
-cred-
believe; trust
credit, discredit, credible, credulous
-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, populace
-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, subtraction, traction, tractor, retract, contraction, extraction
-vid-
-vis-
see; look
evidence, video, provide, providence, visible, visual, vision, revise, visit
-volv-
-volu-
roll; motion or activity
evolve, involve, revolve, revolver, revolution, volume, volunteer, voluble
anti-
against; opposing
Antiwar, anticlimax
bi-
two
bisect, bimonthly
co-
with; together
coexist; codependant
de-
away from; off, down
debrief; debug
dia-
through; across; between
diameter; diagonal
in-, im-
1. in; into; within
2. not
introduce; imprison; insensitive; impatient
inter-
between; among
interpersonal, intersect
non-
not
nonprofit, nonfat
post-
after; following
postnasal, postgraduate, postpone
pre-
before
prepay, preview
re-
back; backward; again
reverse, return, recur
sub-
under; beneath
submarine, substandard
Syl-,
sym-
syn-, sys-
together; with
syllable, symmetric, synthesis, system
trans-
across
transplant, translate
-able
able; likely
readable, lovable, portable, acceptable
-ance, -ancy
act; quality
admittance, constancy, tolerance, acceptance
-ate
to become; to cause; to be
captivate, activate, motivate
-fy
to make; to cause; to be
liquefy, simplify, classify, verify
-ible
able; likely
flexible, digestible, legible, incedible
-ity
state; condition
reality, sincerely, insanity, disability
-ize
to make; to cause; to be
socialize, motorize, apologize, hypnotize
-ment
result; act of; state of being
judgement, fulfillment, advertisement, adjustment
-ous
characterized by
dangerous, malicious, famous, infectious
-tion
action; condition
rotation, election, collection, direction