Romanian ulei

← Bulgarian улей (borrowed)

← Ancient Greek ἔλαιον (derived)

← Latin oleum (derived)

← Proto-Slavic *olějь (borrowed)

→ Romanian ulei eteric (mention)

→ Romanian ulei de măsline (mention)

→ Romanian uleier (suffix)

→ Romanian uleios (suffix)

→ Romanian Valea Uleiului (mention)