| A | B |
| endo (def.) | within |
| exo (def.) | out of, outside |
| string/strict (def.) | bind; draw tight |
| viv (def.) | live, alive |
| convivial (def.) | (adj.) friendly; agreeable; cheerful; sociable; genial |
| vivify (def.) | (v.) to enliven; to refresh; to brighten |
| vivacious (def.) | (adj.) lively; full of animation and spirit; sparkling; exuberant |
| vivisection (def.) | (n.) the practice of cutting into living animals |
| endoscope (def.) | (n.) a slender, tubular optical instrument used as a viewing system for examining an inner part of the body and, with an attached instrument, for biopsy or surgery. |
| endorphin (def.) | a substance that the body produces which acts as a pain reliever, connected to feelings of well-being—often called "runner's high." |
| stricture (def.) | (n.) severe or harsh criticism; censure (not the same as censor) |
| constrict (def.) | (v.) to make smaller or narrower by squeezing or binding; to compress; to contract |
| astringent (def.) | a substance that shrinks tissue, usually on the skin |
| stringent (def.) | (adj.) strict; severe; forceful; exacting |
| exorcise (def.) | (v.) to declare or prove blameless; vindicate; absolve; relieve |
| exonerate (def.) | (v.) to declare or prove blameless; vindicate; absolve; relieve |
| exorbitant (def.) | (adj.) outside reasonable limits; excessive; preposterous; outrageous |