Prefijos y sufijos

Prefix | Meaning | Examples |
a- | also an- | not, without | atheist, anaemic |
a- | to, towards | aside, aback |
| in the process of, in a particular state | a-hunting, aglow |
a- | of | anew |
| completely | abashed |
ab- | also abs- | away, from | abdicate, abstract |
ad- | also a-, ac-, af-, ag- al-, an-, ap-, at- as-, at- | movement to, change into, addition or increase |advance, adulterate, adjunct, ascend, affiliate, affirm, aggravate, alleviate, annotate, apprehend, arrive, assemble, attend |
ante- | before, preceding | antecedent, ante-room |
anti- | also ant- | opposing, against, the opposite | anti-aircraft, antibiotic, anticlimax, Antarctic |
be- | all over, all around | bespatter, beset |
| completely | bewitch, bemuse |
| having, covered with |bejewelled |
| affect with (added to nouns) | befog |
| cause to be (added to adjectives) | becalm |
com- | also co-, col-, con-, cor- | with, jointly, completely | combat, codriver, collude, confide, corrode |
contra- | against, opposite | contraceptive |
counter- | opposition, opposite direction | counter-attack, counteract |
de- | down, away | descend, despair, depend, deduct || completely | denude, denigrate |
| removal, reversal | de-ice, decamp |
dia- | also di- | through, across | diagonal |
dis- | also di- | negation, removal, expulsion | disadvantage, dismount, disbud, disbar |
en- | also em- | put into or on | engulf, enmesh |
| | bring into the condition of | enlighten, embitter |
| | intensification | entangle, enrage |
ex- | also e-, ef- |out | exit, exclude, expand |
| | upward | exalt, extol |
| | completely | excruciate, exasperate |
| | previous | ex-wife |
extra- | outside, beyond | extracurricular |
hemi- | half | hemisphere |
hyper- | beyond, more than, more than normal | hypersonic, hyperactive |
hypo- | under | hypodermic, hypothermia |
in- | also il-, im- | not, without | infertile, inappropriate,impossible |
| also il-, im-, ir- | in, into, towards, inside | influence, influx, imbibe |
infra- | below | infrared, infrastructure |
inter- | between, among | interact, interchange |
intra- | inside, within | intramural, intravenous |
non- | absence, negation | non-smoker, non-alcoholic |
ob- | also oc-, of-, op- | blocking, against, concealing | obstruct, occult, offend, oppose |out- | surpassing, exceeding | outperform |
| external, away from | outbuilding, outboard |
over- | excessively, completely | overconfident, overburdened, overjoyed |
| upper, outer, over, above | overcoat, overcast |
peri- | round, about | perimeter |
post- | after in time or order | postpone |
pre- | before in time, place, order or importance | pre-adolescent, prelude, precondition|
pro- | favouring, in support of | pro-African |
| acting for | proconsul |
| motion forwards or away | propulsion |
| before in time, place or order | prologue |
re- | again | repaint, reappraise, reawake |
semi- | half, partly | semicircle, semi-conscious |
sub- | also suc-, suf-, sug-, sup-, sur-, sus- | at a lower position | submarine, subsoil |
| | lower in rank |sub-lieutenant |
| | nearly, approximately | sub-tropical |
syn- | also sym- | in union, acting together | synchronize, symmetry |
trans- | across, beyond | transnational, transatlantic |
| into a different state | translate |
ultra- | beyond | ultraviolet, ultrasonic |
| extreme | ultramicroscopic |
un- | not | unacceptable, unreal, unhappy, unmanned |
| reversal or cancellation ofaction or state | unplug, unmask |
under- | beneath, below | underarm, undercarriage |
| lower in rank | undersecretary |
| not enough | underdeveloped |

Believable - unbelievable.
Regular - irregular.                          
 patient - impatient.
Honest - dishonest.                               
Accurate - inaccurate.
Appear - disappear.                               
 ...