Strong's G1909 — ἐπί (preposition)
epi (ep-ee') prep.
1. (properly) meaning superimposition (of time, place, order, etc.)
2. (genitive case) as a relation of distribution (over, upon, etc.)
3. (dative case) of rest (at, on, etc.)
4. (accusative case) of direction (towards, upon, etc.)
{literally or figuratively; In compounds it retains essentially the same import (at, upon, etc.)}
[a primary preposition]
KJV: about (the times), above, after, against, among, as long as (touching), at, beside, X have charge of, (be-, (where-))fore, in (a place, as much as, the time of, -to), (because) of, (up-)on (behalf of), over, (by, for) the space of, through(-out), (un-)to(-ward), with. 
Occurrences: 890