From the Ancient Greek prefix ἀπό- (apó-), from the preposition ἀπό (apó, “from, away from”), from the Proto-Indo-European *h₂epo (“off, away”), whence the English words off and of, and ab- (via Latin).
- away from, or separate
- without, or lacking
- (chemistry) derived from, or related to
- (biochemistry) the apoprotein form of the protein