רְבָבָה‎ (rᵉbâbâh|reb-aw-baw'|noun|feminine|multitude)
[Heb] רְבָבָה‎ ETCBC: רְבָבָה‎ (subs|multitude) OSHL: t.ae.af TWOT: 2099d GK: H8047 Greek: μυριάς
Derivation: from רָבַב‎;
Strong's: abundance (in number), i.e. (specifically) a myriad (whether definite or indefinite)
KJV: many, million, [idiom] multiply, ten thousand.