Lexical Definition

‎μύριοι‎ mýrioi (moo'-ree-oi) myriad G:A
plural of an apparently primary word (properly, meaning very many)

ten thousand.

Usage: 5 forms in 9 verses
Form Translated As     In Verse(s)
μύριαι ten thousand LXX.Dan.7.10
μύρια ten thousand LXX.1Chr.29.7LXX.Esth.3.9LXX.Job.42.12
μυρίων of ten thousand Matt.18.24
ten thousand LXX.Esth.4.7
μυρίουσ ten thousand 1Cor.4.151Cor.14.19
μυρίοισ ten thousand LXX.Judg.20.10

Abbott-Smith

μυρίος, -α, -ον,
1. numberless, countless, infinite: I Co 4:15 14:19.
2. As a definite numeral, in pl., μύριοι, -αι, , ten thousand: Mt 18:24.†

Abbott-Smith References

Book Refs
Matthew 18:24
1 Corinthians 4:15 · 14:19

Liddell-Scott-Jones

Related to: μύριοι-άς, δος, ,

Attic dialect genitive plural μυριαδῶν [Refs 2nd c.AD+]:—number of [Refs]myriad, [Refs 5th c.BC+] times [Refs 3rd c.AD+]: frequently of countless numbers, [Refs 5th c.BC+]; of money (i.e. δραχμῶν), [Refs 5th c.BC+]; of corn (i.e. μεδίμνων), [Refs 5th c.BC+]; also (i.e. ἀρταβῶν), [Refs 3rd c.AD+]

__II as adjective, φύστις μ. ἀνδρῶν [Refs 5th c.BC+]