2 occurrences in 2 dictionaries
Gad'ites
Members of the tribe of Gad. De 3:12; Jos 22:1; etc.
And [so] we took possession of this land at that time, from Aroer, which [is] on the [edge of the] wadi of Arnon, and [also] half of the hill country of Gilead and its towns I gave to the Reubenites and to the Gadites.