Word Summary
myrias: ten thousand, a myriad
Original Word: μυριάς
Transliteration: myrias
Phonetic Spelling: (moo-ree'-as)
Part of Speech: Noun, Feminine
Short Definition: ten thousand, a myriad
Meaning: ten thousand, a myriad
Strong's Concordance
double myriad, ten thousand.

From murioi; a ten-thousand; by extension, a "myriad" or indefinite number -- ten thousand.

see GREEK murioi

Thayer's Greek Lexicon
STRONGS NT 3461: μυριάς

μυριάς, μυριαδος, (μυρίος) (from Herodotus down), the Sept. for רְבָבָה and רִבּו;

a. ten thousand: Acts 19:19 (on which passage see ἀργύριον, 3 at the end).

b. plural with the genitive equivalent to an innumerable multitude, an unlimited number ((like our myriads), the Latinsexcenti, German Tausend): Luke 12:1; Acts 21:20; Revelation 5:11 (not; (here L T δισμυριάδες, which see); used simply, of innumerable hosts of angels: Hebrews 12:22 (here G L Tr put a comma after μυριάσιν); Jude 1:14; Deuteronomy 33:2; Daniel 7:10.