The first form is patrial from H1507; a Gezerite (collectively) or inhabitant of Gezer; but the second form is better (as in the text) by transposition and is patrial of H1630; a Girzite (collectively) or member of a native tribe in Palestine: - Gezrites.
Probably from H1518; the external {abdomen}belly (as the source of the foetus (compare H1521)): - belly.
Verse
Matrix
1Sa 27:8¶ And David and his men went up, and invaded the Geshurites, and the GezritesH1511, and the Amalekites: for those nations were of old the inhabitants of the land, as thou goest to Shur, even unto the land of Egypt. ▼