myriarch

The story

1. Mongolian · calque oftümen-ü noyon
2. Old Persian · derived from*baivarapatiš
3. Ancient Greek · derived fromμυριάρχης
4. English todaymyriarch

From Ancient Greek μυριάρχης (muriárkhēs) in Herodotus or μυρίαρχος (muríarkhos) in Xenophon, from μυρίος (muríos, “myriad, ten thousand”) + -άρχης (-árkhēs) or -αρχος (-arkhos, “-arch: ruler, commander”), calque of Old Persian *baivarapatiš. As a Mongolian commander, Calque of Mongolian tümen-ü noyon.