олія (Ukrainian) comes from Old East Slavic олѣ́й, from Old East Slavic олѣи, from Proto-Slavic olejь, from Latin oleum, from Ancient Greek ἔλαιον, from Ancient Greek ἐλαία, from Proto-Hellenic elaíwā, from Proto-Indo-European loiwom.
олія (Ukrainian): vegetable oil, plant oil