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Appendix:English prefixes

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Happiness is a hard thing because it is achieved only by making others happy.
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A

B

C

D

  • de-: reversal, undoing, removing. intensifying. from, off.
  • dec-, deca-: ten. 10.
  • deci-: tenth part. 10-1.
  • deka-: ten. 10.
  • demi-: half. one that partly belongs to.
  • deoxy-: (chemistry) compounds that are formally derived from others by the replacement of a hydroxy group by a hydrogen atom.
  • deuter-, deutero-: second (in the sense of next after the first).
  • di-: two, twice or double. through, across. reversal, removal. apart. intensifying.
  • dia-, di-: through, across.
  • dichlor-, dichloro-: (chemistry) two chlorine atoms.
  • dinitro-: (chemistry) two nitro groups (-NO2).
  • dino-
  • dipl-, diplo-: double.
  • dis-, di-: reversal, removal. apart. intensifying.
  • dodec-, dodeca-: twelve.
  • dys-: abnormal. difficult. impaired. bad.

E

  • eco-: habitat or environment. ecological, environmental (in the ecological sense).
  • ecto-: outside, external.
  • eigen-: own (adjective).
  • electr-, electro-: electricity, electric. electrolytic. electron.
  • em-: in, into, on, onto, within. covered. caused. provide with. as intensifier.
  • en-: in, into, on, onto, within. covered. caused. provide with. as intensifier.
  • end-, endo-: inside, within. taking in.
  • ennea-: nine.
  • ent-, ento-: inside, within, inner.
  • epi-: above, over, on, upon, outer. in addition to, besides, attached to. after. chemical entity related to or distinguished from (such) another.
  • equi-: equal, equally.
  • ethno-: race, people, cultural group.
  • eu-: good. well, easily. true.
  • Eur-, Euro-: Europe, especially as a political entity.
  • ex-: out of, outside. not. former.
  • exa-: quintillion. 1018.
  • exbi-: 260.
  • exo-: outside, external, outer. turning out.
  • extra-: outside, beyond.

F

  • femto-: 10-15.
  • ferro-: iron (element). (chemistry) ferrous.
  • fluor-, fluori-, fluoro-: fluorine. fluorescence.
  • for-: from. against, so as to involve prohibition, exclusion, omission, failure, neglect, or refusal. destructively, detrimentally. completely, excessively, to exhaustion, to pieces.
  • fore-: before, in front of, front, foremast. earlier, beforehand.
  • Franco-: French.

G

H

I

  • il-: not. in, within, into. toward, on, onto. lacking, without. covered. caused. provide with. as intensifier.
  • im-: not. in, within, into. toward, on, onto. lacking, without. covered. caused. provide with. as intensifier.
  • in-: not. in, within, into. toward, on, onto. lacking, without. covered. caused. provide with. as intensifier.
    • ind-, indo-: indigo (plant). indigo (color).
  • Indo-: India. East Indies. Indo-European.
  • inter-: among, between, amid. reciprocal.
  • intra-: inside, in, into, inward, interior, within. during, between.
  • ir-: not. in, within, into. toward, on, onto. lacking, without. covered. caused. provide with. as intensifier.
  • is-, iso-: equal, homogeneous, uniform. (chemistry) isomer. for or from different individuals of the same species.
  • Italo-: Italian.

J

K

  • kibi-: 210.
  • kilo-: thousand. 1,000. (computing) 210.

L

M

  • macr-, macro-: large. long. inclusive.
  • mal-: bad, faulty. not. abnormal. inadequate.
  • mebi-: 220.
  • mega-: million, 106. (computing) 220. Template:computing - marketing 210 * 103. great, large.
  • mes-, meso-: middle. intermediate.
  • meta-: transcending, encompassing, comprehensive. self-referential. analogies with metaphysics. classifications. change, transformation. (pathology) consequent on. Template:anatomy and zoology behind. Template:botany and zoology later, subsequent. (geology) analogies and derivatives of metamorphism. (chemistry) having fewer molecules of water. (chemistry) in isomeric benzene derivatives, having the two substituents in alternate positions.
  • metro-: city.
  • micr, micro-: very small. 10-6. microscopy. microphotograph, microfilm.
  • midi-
  • milli-: 10-3. thousand.
  • mini-: small, brief.
  • mis-: bad, wrong. lack, failure. opposite, not. unfavorable.
  • miso-: hatred.
  • mon-, mono-: one, single, alone.
  • multi-: many.
  • myria-: ten thousand. 10,000.
  • myxo-: mucus.

N

  • nano-: 10-9. nanotechnology. nanoscale.
  • naso-: nose.
  • necr-, necro-: death.
  • neo-: new, recent.
  • non-: not, other than. reverse. absent, lacking. unimportant, worthless, of little or no consequence.
  • non-, nona-: nine.

O

  • oct-, octa-, octo-: eight.
  • olig-, oligo-: few.
  • omni-: all, universal.
  • orth-, ortho-: straight. upright, vertical, perpendicular. right, proper, correct. (chemistry) having extra proportion of water, hydrated, hydroxylated. (chemistry) in isomeric benzene derivatives, having the two substituents in adjacent positions. (physics)) of any molecule of the form X2 wherein the two nuclei have parallel spin.
  • out-: external. surpassing, exceeding, greater, beyond.
  • over-: above, higher. superior. excessive, surpassing, exceeding.
  • ov-, ovi-, ovo-: egg. ovum.

P

  • palaeo-, pale-, paleo-: very old, prehistoric, ancient. very early, primitive, archaic.
  • par-, para-: beside, near, alongside, beyond, aside. abnormal. incorrect, faulty. resembling, related, almost. subsidiary, accessory. (chemistry) in isomeric benzene derivatives, having the two substituents in opposite positions.
  • pebi-: 250.
  • pent-, penta-: five.
  • peta-: (United States of America) quadrillion, 1015. (Great Britain) septillion, 1024.
  • phon-, phono-: sound, voice, speech.
  • photo-: light, electromagnetic radiation, radiant energy. photograph.
  • phys-, physi-, physio-: nature. physical.
  • pico-: 10-12. very small.
  • post-: after. beyond.
  • poly-: many. polymer.
  • praeter-: beyond.
  • pre-: front, anterior (in space). before, earlier, prior (in time).
  • preter-: beyond.
  • prot-, proto-: first, beginning, primary. (linguistics) hypothetical ancestor of a family of languages.
  • pseud-, pseudo-: false, fake, spurious. pretentious. temporary, substitute.
  • psych-, psycho-: mind. brain.
  • pter-, ptero-: wing, feather.
  • pyro-: fire, heat. fever. (chemistry) ortho acid.

Q

R

  • radi-, radio-: radiation. (anatomy) radius (bone).
  • re-: again, anew. backward.
  • robo-: robot.
  • ribo-: set of 3 CHOH molecules

S

  • schiz-, schizo-: split, cleft. schizophrenia.
  • semi-: half. partial, incomplete.
  • sept-, septa-, septem-, septi-
  • sex-, sexa-: six.
  • Sino-: China.
  • step-: related via marriage of parent.
  • sub-: under, beneath, below. subsidiary, secondary, subordinate. almost, nearly, somewhat.
  • sui-
  • super-: above, over, upon. superior in size, quality, number, degree, status, title, or position. inclusive.
  • supra-: above, over, on top. greater than, transcending.
  • syl-: with, together.
  • sym-: identical. with, together. concomitant.
  • syn-: identical. with, together. concomitant.

T

U

V

W

X

Y

Z