ἀπο-

• ἀπ- (ap-) — before a vowel without rough breathing
• ἀφ- (aph-) — before a vowel with rough breathing

From ἀπό (apó), used as a prefix.

ἀπο- • (apo-)

1. Indicating movement: away, from, off

   ἀποβαίνω (apobaínō, “step off”)

2. Indicating breaking one part from another: un-, asunder, apart, off

   ἀποτέμνω (apotémnō, “cut off”)

3. Indicating ending or finishing, or almost like the negative ἀ- (a-, “not”), especially in adjectives

   ἀπαλγέω (apalgéō, “put away sorrow for”), ἀπόσῑτος (apósītos, “having eaten nothing”)

4. back, again

   ἀποδίδωμι (apodídōmi, “give back”)

5. Simply emphasizing the meaning of the verb
6. because of, owing to

• Greek: απο- (apo-)

• “ἀπό”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press