Added 10 October 2026
oleaginous
/ˌəʊ.lɪˈæd͡ʒ.ɪ.nəs/ adjective
In Latin: oleāginōsus Wiktionary
adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about oleaginous at Wordnik → Where our words come from →
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Unpleasantly and excessively suave or ingratiating in manner or speech.
buttery praise
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Containing an unusual amount of grease or oil.
greasy hamburgers
Origin
Borrowed from French oléagineux, borrowed from Medieval Latin oleāginōsus (“oily”), from olea (“the olive tree or its fruit”).
From Wiktionary, via Kaikki.org (CC BY-SA)