Strong's G65 — ἀγριέλαιος (noun)
agrielaios (ag-ree-el'-ai-os) n.
1. a wild olive (tree or fruit)
2. (plant family) an oleaster (i.e. Elaeagnus, Silverberry, Olea Europea, etc.)
[from G66 and G1636]
KJV: olive tree (which is) wild 
Root(s): G66, G1636 
Hebrew root: ἐλαῖα
Occurrences: 2