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