oleaginous
o-le-ag-i-nous / ō-lē-ăj-ə-nəs
adjective 1. pertaining to oil; oily The gems cling to the oleaginous substance. From "An African Adventure" by Isaac F. Marcosson, 1877 - 1961 2. overly smug or ingratiating; unctuous The man of law consoled him with oleaginous phrases: told him he very much underrated the power of money. From "White Lies" by Charles Reade, 1814 - 1884 etymology From the Latin adjective oleaginus (of the olive-tree [olea]) through the French adjecitve oleagineux (oily, unctuous). Thank you to Allen Ward for providing this etymology.