myriás

Myriás is a term originating from the Greek μυριάς, meaning ten thousand. In ancient Greek numeration, μυριάς designated the number 10,000 and was used to express large quantities, such as populations or land measures. The word entered Latin and English as myriad, originally referring to ten thousand but over time broadening to mean an indefinitely large number. In classical literature, myriads often conveys vastness or abundance rather than a precise count.

Modern usage of the word in English treats myriad as both a noun and an adjective. As a noun, it can be used with plural or singular verbs, though a myriad of is common in contemporary style; the plural myriads does occur in some texts. As an adjective, myriad describes a countless or numerous amount (e.g., myriad stars).

In science and mathematics, the prefix myri- as a combining form names large quantities or shapes with ten thousand sides, such as a myriagon (a polygon with 10,000 sides). The noun myriapod names a group of multi-legged arthropods, including centipedes and millipedes, reflecting the idea of many legs. In modern Greek, μυριάς means ten thousand, and μυριάδες is the plural; the term survives in technical terms and cultural usage to convey vastness.

Overall, myriás embodies an ancient counting concept that has endured in language as a symbol of great quantity, while in everyday English it has shifted toward an indefinite, qualitative sense of abundance.