Isaiah 11:11 Jeremiah 44:1,15 Ezekiel 29:14 30:14, one of the three ancient divisions of Egypt, namely, Upper or Southern Egypt, which Ezekiel speaks of as distinct from Egypt, and the original abode of the Egyptians; as indeed Ethiopia and Upper Egypt really were. Its early inhabitants called Pathrusim, were descendants of Mizraim, Genesis 10:14. See EGYPT.
Source: ATS Bible Dictionary
Pathros
The name generally given to Upper Egypt (the Thebaid of the Greeks), as distinguished from Matsor, or Lower Egypt (Isaiah 11:11; Jeremiah 44:1,15; Ezekiel 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.
Source: Easton's Bible Dictionary
Pathros
(region of the south ), a part of Egypt, and a Mizraite tribe whose people were called Pathrusim. In the list of the Mizraites the Pathrusim occur after the Naphtuhim and before the Caluhim; the latter being followed by the notice of the Philistines and by the Caphtorim. (Genesis 10:13,14; 1 Chronicles 1:12) Pathros is mentioned in the prophecies of Isaiah, (Isaiah 11:11) Jeremiah (Jeremiah 44:1,15) and Ezekiel. (Ezekiel 29:14; 30:13-18) It was probably part or all of upper Egypt, and we may trace its name in the Pathyrite name, in which Thebes was situated.