רָבַב (râbabraw-bab'verbbe many)
[Heb] רָבַב ETCBC: רבב‎ (verb|be much) OSHL: t.ae.aa TWOT: 2099 GK: H8045
Derivation: a primitive root; (compare רָבִיב); also as denominative from רְבָבָה;
Strong's: properly, to cast together , i.e. increase, especially in number; to multiply by the myriad
KJV: increase, be many(-ifold), be more, multiply, ten thousands.