means A small oval fruit, green or black, grown on the Mediterranean olive tree and pressed for its oil or cured for eating.

from From Latin 'oliva,' itself borrowed from Greek 'elaia,' the olive tree — and 'elaion,' its oil, which is why 'oil' and 'olive' share the same ancient root. The Greek word may trace back to a lost Mediterranean language spoken before either Greek or Latin arrived, since the tree was already sacred to the peoples around that sea. It reached English through Old French 'olive.'