Demotiс Egyptian language was the state of the Egyptian language from the seventh century BC to the fifth century AD. The formation and development of the Demotic language as a separate language from the New Egyptian was strongly influenced by Aramaic and Ancient Greek.
Copts (Coptic: ⲚⲓⲢⲉⲙ̀ⲛⲭⲏⲙⲓ ̀ⲛ̀Ⲭⲣⲏⲥⲧⲓ̀ⲁⲛⲟⲥ, romanized: NiRemenkēmi enKhristianos; Arabic: أقباط, romanized: aqbāṭ) are a Christian ethnoreligious group native to Northeast Africa who have primarily inhabited the area of modern Egypt since antiquity. They are, like the broader Egyptian population, descended from the ancient Egyptians. Copts predominantly follow the Coptic Orthodox Church, the Alexandrian Greek Orthodox Church and the Coptic Catholic Church. They are the largest Christian population in Egypt and the Middle East, as well as in Sudan and Libya. Copts account for roughly 5 to 15 percent of the population of Egypt.
Originally referring to all Egyptians, the term Copt became synonymous with native Christians in light of Egypt's Islamization and Arabization after the Muslim conquest of Egypt in 639–646 AD. Copts have historically spoken the Coptic language, a direct descendant of the Demotic Egyptian that was spoken in late antiquity.