pathros

from Easton's 1897 Bible Dictionary

Pathros
the name generally given to Upper Egypt (the Thebaid of the
Greeks), as distinguished from Matsor, or Lower Egypt (Isa.
11:11; Jer. 44:1, 15; Ezek. 30:14), the two forming Mizraim.
After the destruction of Jerusalem by Nebuchadnezzar, colonies
of Jews settled "in the country of Pathros" and other parts of
Egypt.

from Hitchcock's Bible Names Dictionary (late 1800's)

Pathros, Pathrusim, mouthful of dough; persuasion of ruin