apo-








  1. a prefix occurring originally in loanwords from Greek, where it was joined to verbs, deverbal forms, and other parts of speech. Among its functions in Greek, apo- has the spatial sense “away, off, apart” (apogee; apocope; apostasy; apostrophe); it occurs with deverbals that denote a response or defense (apodosis; apology) and is found on verbs having perfective force relative to a corresponding simple verb (apoplexy; aposiopesis). In modern scientific coinages in English and other languages, apo- marks things that are detached, separate, or derivative (apocarpous; apoenzyme).

prefix

  1. away from; offapogee
  2. indicating separation ofapocarpous
  3. indicating a lack or absence ofapogamy
  4. indicating derivation from or relationship toapomorphine

before vowels ap-, word-forming element meaning “from, away from, separate, free from,” from Greek apo “from, away from; after; in descent from,” in compounds, “from, asunder, away, off; finishing, completing; ceasing from; back again,” from PIE root *apo- “off, away” (cf. Sanskrit apa “away from,” Avestan apa “away from,” Latin ab “away from, from,” Gothic af, Old English of “away from”).

pref.

  1. Away from; off:aponeurosis.
  2. Separate:apocrine.
  3. Without; lacking; not:apoferritin.
  4. Related to; derived from:apomorphine.

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