myriad

From French myriade, from Late Latin mȳriadem (accusative of mȳrias), from Ancient Greek μυριάς (muriás, “number of 10,000”), from μυρίος (muríos, “numberless, countless, infinite”). By surface analysis, myria- + -ad.

出典: Wiktionary「myriad」（CC BY-SA 4.0）