1) of separation
1a) of local separation, after verbs of motion from a place, i.e. of departing, of fleeing, ...
1b) of separation of a part from the whole
1b1) where of a whole some part is taken
1c) of any kind of separation of one thing from another by which the union or fellowship of the two is destroyed
1d) of a state of separation, that is of distance
1d1) physical, of distance of place
1d2) temporal, of distance of time
2) of origin
2a) of the place whence anything is, comes, befalls, is taken
2b) of origin of a cause
Part of Speech: preposition
A primary particle; "off", that is, away (from something near), in various senses (of place, time, or relation; literally or figuratively): - (X here-) after, ago, at, because of, before, by (the space of), for (-th), from, in, (out) of, off, (up-) on (-ce), since, with. In composition (as a prefix) it usually denotes separation, departure, cessation, completion, reversal, etc.
|(ἀπό . . . εἰς) from . . . to||13.62|
|(καταφέρομαι ἀπὸ τοῦ ὕπνου) be sound asleep||23.71|
|(μετατίθεμαι ἀπό) abandon loyalty to||34.27|
|(στέλλομαι ἀπό) avoid association||34.41|
|(ἀπὸ μιᾶς) one by one||61.2|
|(ἀπὸ μέρους) in part||63.15|
|d of (part-whole)||63.20|
|(ἀπ᾽ αἰῶνος) long ago||67.25|
|(ἀφ᾽ ἡμερῶν ἀρχαίων) long ago||67.26|
|(ἀπὸ μέρους) temporary||67.109|
|h since (time)||67.131|
|(ἀπὸ τῶν αἰώνων) since all time||67.133|
|c from (extension)||84.3|
|i because of (reason)||89.25|
|a from (dissociation)||89.122|
|e of (substance)||89.142|
|f by (agent)||90.7|
|g by (instrument)||90.11|
|b from (source)||90.15|
|j upon (responsibility)||90.19|
|(αἴρω ἀπό) cause to no longer experience||90.96|
|(παραφέρω τὸ ποτήριον ἀπό) cause not to experience||90.97|
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root ἀπό; click on the second column to search for that grammatical form of the root ἀπό; click on the third column to search for that word and grammatical form; click on the total to search for the root ἀπό.