2 occurrences in 2 dictionaries
Gad'ites
Members of the tribe of Gad. De 3:12; Jos 22:1; etc.
And this land, took we in possession at that time, - from Aroer which is by the ravine of Arnon, and half the hill-country of Gilead and the cities thereof, gave I unto the Reubenites and unto the Gadites;
Then, called Joshua - for the Reubenites, and for the Gadites, - and for the half tribe of Manasseh;