The story
- Ancient Greek · learned borrowing fromτριᾱκοντάς
- English todaytriacontad
Learned borrowing from Ancient Greek τριᾱκοντάς (triākontás), from τριάκοντα (triákonta, “thirty”). By surface analysis, triacont- + -ad.
Etymology from Wiktionary, CC BY-SA 4.0.