Derivational Prefix List (2013)

I. Prefix list

This list include the most common prefixes (a word element that only used as a prefix) and combining forms. Please note that prefixes can be used by itself (prefix), with space (prefix ), or with hyphen (prefix-). For example, prefix of "non" can be added to word significant as:

  • nonsignificant|significant
  • non-significant|significant
  • non significant|significant

The following tables list all prefixes for Lexical Tools derivations:

PrefixSensesNegation
Tag
ExampleLVG Release
a lacking in, lack of, not, withoutNasexual, asymmetric2012
predicative adjective with progressive aspect (verb)Oafloat, atremble
on, in, atOabed, amidst, ashore
in (such) a state or conditionOafresh
in (such) a mannerOaloud, alive
absaway, fromOabstractTBD
afaddition or increaseOaffirmTBD
atchange into, movement to, addition or increaseOattendTBD
Afrorelating to AfricaOAfro-American2012
ambibothOambitendency2012
amphitwo, both, on both sidesOamphiaster, amphitheater, amphibian2012
an lacking in, lack of, not, withoutNanemic2012
up, againstOanode
anaup, againstOanatoxin2012
Anglorelating to EnglandOAnglo-Irish2012
antebeforeOantenatal2012
antiopposite, againstNanti-war, antivirus, anti-human2012
apo away, different fromOapomorphine2012
detached, separateOapocarpous
formed from, related toOapocodeine
arch supreme, highest, worstOarchangel2012
preeminent, extremeOarchcapitalist, archinfamy
first in time, primitiveOarchfather, archform
astro starOastrobiology2012
astrological, astrological andOastrodiagnosis, astromedical
aster in cellsOastrosphere
autoselfOautobiography, automatic2013
automatic, self-acting, self-regulatingOautofeed, autowind
of, by, affecting or for the same individualOautohemagglutination, autovaccine
self-caused, self-induced, occurring within one’s own body sometimes pathologicallyOautointoxication
acting as an antibody on or produced as an antibody for one’s own antigensOautoagglutinin, autohemolysin
be equipped with, covered with, beset with (pejorative or facetious)Obedeviled, becalm, bedazzle, bewitch2012
to a great degree, thoroughlyObecudgel, befuddle, bespatter
about, to, at, upon, against; intransitive verbs from intransitive verbsObestride, bespeak
make, cause to be, treat as; verbs from adjectives or nounsObelittle, benumb, befriend
chemical prefix of unknown meaningObekanamycin, bemethyl
bitwoObicycle2012
biobiologicalObiodegrade2012
bis both; of or belonging to both; twoObisischiatic, bismarineTBD
doubledObisdimethylamino, bisquaternary
circumaroundOcircumnavigate2012
cison this sideOcis-vaccenateTBD
co joint, with, accompanyingOco-worker, coordinator, cooperation, cohabit2012
in or to the same degreeOcoextensive, coeval
operating together or reciprocallyOcoterm
of the complement of an angleOcosine, codeclination
con together or withOconfederation2012
coneOconus
comtogether or withOcommingle2012
col together or withOcolleague2012
colonOcolectasia
cortogether or withOcorrelation2012
contraoppositeNcontradict2012
counteragainst, in opposition toNcounteract, counterpart2012
cryoiceOcryogenics2012
cryptohidden, secretOcryptography2012
de reverse action, get rid ofNde-emphasise2012
downOdepress
get off of (something)Odetrain, deplane
derived or compounded from (something)O deacetyl
having removal of one or more atoms of (a specified element)Odehydro-, deoxy-
demihalfOdemiembryo, demispan2012
demopeopleOdemography2012
ditwoOdioxide2012
difapartOdifferTBD
disnot, opposite ofNdisloyal, disagreeTBD
reverse action, get rid ofNdisconnect, disinformation
apartNdissect
dysabnormal, diseased, bad, unfavorable, faultyNdysplasia, dyspathy, dysfunction2012
difficult, with difficultyOdysmenorrhea, dysoxidize
absence or reverse ofOdysteleology
downto make something lesser, lower or worseOdowngradeTBD
dutwoOduet2013
duotwoOduovirus2013
ecoecologicalOecosystem2013
electroelectric, electricityOelectroablation2013
electromagneticOelectrochronograph
electron-relatedOelectrophilic
ento make into, to put into, to get intoOenmesh2013
in, within, insideOendermic, enzootic
chemically saturated; having one double bondOenamine
emto make into, to put into, to get intoOempower2013
to provide withOempower
to cause to be (sometimes with suffix –en)Oembolden
so as to cover or surround; thoroughlyOembower
epiupon, at, close upon, in additionOepidermis2013
petrographically alteredOepidiorite
epimer of a specified chemical compoundOepicholesterol, epirhamnose
chemical compound or group distinguished from another by having a bridge connectionOepichlorhydrin
EuroEuropeanOEurocentric2012
exformerOex-wife2013
out ofOexport
extraoutsideOextracurricular2013
FrancoFrench, FranceOFrancophile2012
forebeforeOforearm, forerunner2013
at or toward the front; the front part of somethingOforearm
georelating to the earth or its surfaceOgeography2013
gyrospinning on an axisOgyrokinetic2013
in a ring or spiralOgyromancy
heterodifferentOheterosexual2013
isomeric with or closely related to a (specified) compoundOheteroxanthine
hemihalfOhemiataxia2013
hemobloodOhemodialysis2013
homologous with a (specified) organic compoundOhomoserine
from the same species; corresponding in type of structureOhomograft, homolysin
haemobloodOhaemodialysisTBD
homosameOhomogenous, homologousTBD
hydrorelating to water, or using waterOhydroelectricity2013
containing hydrogenOhydroborate
characterized by an accumulation of fluid in a (specified) body partOhydronephrosis
hydroidOhydromedusa
hyperabove, overOhyperthermia2013
hypounder or below something, lowOhypothermiaTBD
ideoimage, ideaOideographTBD
idioindividual, personal, uniqueOidiographicTBD
in in, intoOinsertTBD
not, opposite ofNinexact
Indorelating to the Indian subcontinentOIndo-European2012
infrabelow, beneathOinfraredTBD
interamong, betweenOintercede, interstate, interact2012
intrainside, withinOintravenous2012
ilnot, opposite ofNillegalTBD
imnot, opposite ofNimmatureTBD
irnot, opposite ofNirregularTBD
isoequalOisochromaticTBD
macrolongOmacrobioticTBD
malbad(ly)OmalfunctionTBD
maxivery long, very largeOmaxi-circleTBD
megagreat, largeOmegabaseTBD
megalogreat, largeOmegastar, megalopolisTBD
metaafter, along with, beyond, among, behindOmeta-theoryTBD
microsmallOmicroautoradiogramTBD
midmiddleOmidlifeTBD
midimedium-sizedOmidiplasminTBD
minismallOminibusTBD
miswrong, astrayNmisinformation, misguideTBD
monosole, onlyOmonogamyTBD
multimanyOmulti-storey2012
many times over; in many respectsOmultimillionaire, multispecialist
affecting many partsOmultiglandular
neonewOneolithicTBD
nonnotNnonexistent2012
obblocking, against, concealingOibstructTBD
ocblocking, against, concealingOoccultTBD
ofblocking, against, concealingOoffendTBD
opblocking, against, concealingOopposeTBD
omniallOomnipotent, omnipresent2012
ortho correcting or straighteningOorthodontics, orthotropic2012
indicates a 1,2-substituted benzene ring in organice chemistryOorthonitrophenol
indicates the common form of an acid in inorganic chemistryOorthoboric acid
chemical prefixOorthoformate
outbetter, faster, longer, beyondOoutreach, outcome2012
overtoo muchOoverreact, overact2012
paleooldOpaleolithic2012
panall, worldwideOpan-African2012
para beside, beyondOparallel2012
isomeric with, polymeric with, or otherwise closely related toOparacasein
the relation of two opposite positions in the benzene ring that are separated by two carbon atomsOTBD
a derivative in which two substituting groups occupy such positionsOpara-xylene
paedchildOTBDTBD
pedochildOTBDTBD
paedochildOTBDTBD
paidchildOTBDTBD
paidochildOTBDTBD
ped footOpedestrian2012
childOTBD
creature or object having feet or footlike projectionsOPediastrum, pedrail
something (specified) involving feetOpedometor
podfootOpodiatrist2012
per through, completely, wrongly, exceedinglyOpermeate, permute2012
in chemistry, to denote a large amount or designate combination of an element in its highest valenceOperchloroethylene
peri aroundOperiabdominal2012
nearOperihelion
enclosing, surroundingOperineurium
tissue surrounding (specified part)Operiarthritis
photolight, photography, photographOphotoelectric2012
poly manyOpolygon2012
chemistry--containing more than one and especially more than two or three units of (a specified substance)Opolyatomic
chemistry--polymer of, polymerizedOpolyethylene
chemistry--isopoly-Opolymolybdate
postafterOpost-election, post-graduation, postpone2012
prebeforeOpre-election, pre-enter, predict2012
preterbeyond, past, more thanOpreternatural2012
pro for, on the side ofOpro-life2013
substitute, deputyOproconsul
beforeOprocambium
prostowardOProsthesis2012
protofirst, originalOprotoplasm, prototype2012
pseudofalse, imitationOpseudonym2012
pyrfireOpyroantimonateTBD
in chemistry, indicates a dimeric acid anhydrideOpyrophosphoric acid
due to or attributed to the action of fire or heatOpyrochlore
of fiery colorOpyrophanite
fever, fever producingOpyrotoxin
pyro fireOpyroantimonate2012
in chemistry, indicates a dimeric acid anhydrideOpyrophosphoric acid
due to or attributed to the action of fire or heatOpyrochlore
of fiery colorOpyrophanite
fever, fever producingOpyrotoxin
quasipartly, almost, appearing to be but not reallyOquasiaxial2012
reagain, backOrerun2012
retrobackwardsOretrogradeTBD
selfselfOself-sufficientTBD
semihalfOsemicircleTBD
sociosociety, social, sociologicalOsociopathTBD
stepfamily relation by remarriageOstepbrotherTBD
subbelow, underOsubway2012
supbelow, underOsupportTBD
superabove, overOsupervisorTBD
supraabove, overOsuprarenalTBD
surabove, overOsurreal, surrenderTBD
sytogether, withOsystemTBD
syntogether, withOsynthesisTBD
syltogether, withOsyllableTBD
symtogether, withOsymbolTBD
teleat a distanceOtelevisionTBD
transacross, from one place to anotherOtransatlantic, transverseTBD
twitwoOtwilightTBD
trithreeOtricycleTBD
ultrabeyond, extremelyOultraviolet, ultrasonicTBD
un not, opposite ofNunnecessary, unequal2012
reverse action, deprive of, release fromNundo, untie
under lower in grade/dignity, lesser, insufficientNunderachieveTBD
below, beneathOunderground, underpassTBD
unioneOunicycleTBD
upto make something more, higher or betterOupgradeTBD
vicedeputyOvice-presidentTBD
withagainstOwithstandTBD

II. References