Numbers 32:39

And the children of Machir the son of Manasseh went to Gilead,
and took it
That part of it which Moses gave unto the half tribe of Manasseh, which till now was in the hand of the Amorites; for half Mount Gilead, and the cities thereof, were given to the Reubenites and Gadites, which is the land of Gilead they desired, and which was already conquered; for they call it the country which the Lord smote before Israel, ( Numbers 32:1 Numbers 32:4 ) ( Deuteronomy 3:12 Deuteronomy 3:13 ) :

and dispossessed the Amorite which was in it;
for though they were driven out of one part of Gilead, yet not out of the whole.