Easton's Bible Dictionary: M. G. Easton, M.A., D.D.
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.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.