A race of giants; “a people great, and many, and tall, as the Anakims” (Deut. 2:20, 21). They were overcome by the Ammonites, “who called them Zamzummims.” They belonged to the Rephaim, and inhabited the country afterwards occupied by the Ammonites. It has been conjectured that they might be Ham-zuzims, i.e., Zuzims dwelling in Ham, a place apparently to the south of Ashteroth (Gen. 14:5), the ancient Rabbath-ammon.
Zamzummims
3 verses
Genesis
Genesis 14:5
And in the fourteenth year came Chedorlaomer, and the kings that were with him, and smote the Rephaims in Ashteroth Karnaim, and the Zuzims in Ham, and the Emims in Shaveh Kiriathaim,
Deuteronomy
Deuteronomy 2:20
(That also was accounted a land of giants: giants dwelt therein in old time; and the Ammonites call them Zamzummims;
Deuteronomy 2:21
A people great, and many, and tall, as the Anakims; but the LORD destroyed them before them; and they succeeded them, and dwelt in their stead:
From Easton's Bible Dictionary
Matthew George Easton, 1897