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Most common prefixes
Prefixes combined with root words create new meanings
| Term | Definition |
|---|---|
| a- | without |
| ante- | before |
| anti- | against, opposing |
| arch- | more extreme |
| auto- | self |
| bi- | two, twice |
| circum- | round |
| co- | with |
| col-, com-, con- | with |
| contra-, counter- | against, opposing |
| de- | opposite action |
| dia- | across |
| dis- | not, opposite of |
| dys- | abnormal |
| e- | electronic |
| eco- | relating to the environment |
| een(m)- | cause to |
| eequi- | equal |
| eex- | previously |
| eextra- | very |
| efore- | before |
| hyper- | having too much |
| il-, ,im-, in-, ir- | not |
| in(m) | in, movement to |
| inter- | between, connected |
| intra- | within |
| kilo- | thousand |
| macro- | large in size or scope |
| mal- | badly |
| micro- | small in size or scope |
| mid- | middle |
| mis- | wrongly |
| mono- | one |
| multi- | many |
| neo- | based on something older but in new form |
| non- | not |
| out- | more, to a greater extent |
| over- | over/above/too much |
| post- | after |
| pre- | before |
| pro- | in favor of |
| pseudo- | false |
| quasi- | almost, not quite |
| re- | again |
| retro- | backwards |
| semi- | half, partly |
| sub- | under, beneath, part of something |
| super- | above, bigger |
| trans- | across |
| ultra- | extreme |
| un- | not |
| under- | insufficient |
| well- | useful, successful |