Deuteronomy 2:20 in the World English Bible
(That also is considered a land of Rephaim. Rephaim lived there in the past, but the Ammonites call them Zamzummim,
Context
19 And when thou comest nigh over against the children of Ammon, distress them not, nor meddle with them: for I will not give thee of the land of the children of Ammon any possession; because I have given it unto the children of Lot for a possession.
20 (That also was accounted a land of giants: giants dwelt therein in old time; and the Ammonites call them Zamzummims;
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: