Lewis Short
(adjective) : ŏlĕācĕus, a, um, oleum
* Of the olive-tree; hence, like oil, oily (Plinian): liquor,Plin. 35, 15, 51, § 179 (al. oleique): folia oleacea (al. folia violae),id. 21, 4, 10, § 18.
Charlton T. Lewis, Charles Short, A Latin Dictionary