形容詞 oleaginous:

1. unpleasantly and excessively suave or ingratiating in manner or speech
   同義詞：buttery, fulsome, oily, smarmy, soapy, unctuous
2. containing an unusual amount of grease or oil
   同義詞：greasy, oily, sebaceous

o.le.ag.i.nous

adj.（形容詞）
Of or relating to oil.
油的或與油有關(guān)的
Falsely or smugly earnest; unctuous:
油嘴滑舌的：假裝熱情的；滿口恭維的：
例句：
oleaginous flattery.See Synonyms at unctuous
諂媚的恭維參見 unctuous

來源：
From Middle English oliaginose
源自 中古英語 oliaginose
and from French oléagineux from Old French
并源自 法語 oléagineux 源自 古法語
both from Latin ole3ginus [of the olive tree]
都源自 拉丁語 ole3ginus [橄欖樹的]
from olea [olive tree]
源自 olea [橄欖樹]
alteration influenced by oleum [olive oil]
受 oleum的影響 [橄欖油]
of olova * see olive
olova的變化 *參見 olive

【引伸】
o.leag.inously
adv.（副詞）
o.leag.inousness
n.（名詞）