myriad

In the context of numeric naming systems for powers of ten, myriad is the quantity ten thousand (10,000). Idiomatically, in English, myriad is an adjective used to mean that a group of things has indefinitely large quantity.

Myriad derives from the ancient Greek for ten thousand () and is used with this meaning in literal translations from Greek, Latin or Sinospheric languages (Chinese, Japanese, Korean, and Vietnamese), and in reference to ancient Greek numerals.