Ancient Greek 
Alternative forms 
Traditionally held to be the superlative of πρό (pro, “before”) (compare πρότερος (proteros)), but it is unclear how such a contraction would come about. Could also be from a Proto-Indo-European *pr̥H-, with cognates including Lithuanian pirmas, Sanskrit पूर्व (pūrva), and Avestan 𐬞𐬀𐬎𐬭𐬬𐬀 (paurva). In both cases, the ω and α forms are difficult to reconcile.
πρῶτος m, πρώτη f, πρῶτον n; first/second declension; (prỗtos)
- (ordinal) first, cardinal counterpart is εἷς
- foremost, most prominent
- (mathematics) prime