Where does “oleaginously” come from?
oleaginously (English) comes from English oleaginous, from French oléagineux, from Medieval Latin oleāginōsus, from Latin Olea, from Ancient Greek ἐλαία, from Proto-Hellenic elaíwā, from Proto-Indo-European loiwom.
oleaginously (English): In an oleaginous manner
Ancestry of “oleaginously”, step by step