Wikipedia
Oil-tree
Oil-tree - (Isa. 41:19; R.V. marg., "oleaster"), Heb. 'etz shemen, rendered " olive tree" in 1 Kings 6:23, 31, 32, 33 (R.V., "olive wood") and "pine branches" in Neh. 8:15 (R.V., "branches of wild olive"), was some type of tree distinct from the olive.