Mizraim

Mizraim ("Name means::the two straits") was the second son of son of::Ham and the progenitor of the Egyptians, according to.

According to Eusebius - 4th century AD historian: Egypt is called Mestraim by the Hebrews; and Mestraim lived not long after the flood. For after the flood, Cham (or Ham), son of Noah, begat Aeguptos or Mestraim, who was the first to set out to establish himself in Egypt, at the time when the tribes began to disperse this way and that…Mestraim was indeed the founder of the Egyptian race; and from him the first Egyptian Dynasty must be held to spring.

Descendants
Mizraim's sons were father of::Ludim, father of::Anamim, father of::Lehabim, father of::Naphtuhim, father of::Pathrusim, father of::Casluhim (out of whom came the Philistines), and father of::Caphtorim.

The name Mizraim means "the two straits", referring to the dynastic separation of upper and lower Egypt or "the two Mazors", i.e. walls of fortifications. On the border with Asia, Egypt had a chain of these forts. It was the Canaanites who called them "Shar" or "the wall". The Arabs called Egypt "Miṣr", and in modern Egyptian Arabic it is known as Maṣr. The Assyrians and Babylonians called it "Misri", "Museri", or "Musri" but, it was the Mycenaeans who called it a-ku-pi-ti-yo (𐁁𐀓𐀠𐀴𐀍) from whence the Greek word originated. Strabo suggested that the word came from the compound, meaning "below the Aegean". After Octavian (the future emperor Augustus) annexed the Greek Ptolemaic kingdom of Egypt to the Roman Empire in 30 BC, it was called  in Latin.