Zamzummim

“The Ammonites likewise got possession of a country that had formerly been inhabited by giants, called Zamzummim, crafty men, or wicked men”

Commentary on the Whole Bible Volume I (Genesis to Deuteronomy)

“Query -- Were these remains of the primeval Zamzummim?”

Byeways in Palestine

“In regard to the "Zuzim" it seems best to accept the suggestion that this is merely another form of Zamzummim who are mentioned in De 2: 20.”

Exposition of Genesis: Volume 1

“Og, king of Bashan in the time of the Exodus, was "of the remnant of the Rephaim" (Deut.iii. 11); but so also were the Anakim in Hebron, the Emim in Moab, and the Zamzummim in Ammon”

Patriarchal Palestine

“Moabites, and like the Zamzummim, "a people great and many and tall," whom the Moabites expelled doubtless at the same time as that at which the Ammonites conquered the Zamzummim.”

Patriarchal Palestine

“Zamzummim and Ammon, and the same people are meant both in Genesis and in Deuteronomy.”

Patriarchal Palestine

“Zuzim perhaps inhabited the country of the Ammonites, who were identical with the Zamzummim, who are known to have ben exterminated and succeeded in their land by the Ammonites”

Smith's Bible Dictionary

“fearful", (Deut. 2: 11), and to the Ammonites as Zamzummim.”

Easton's Bible Dictionary