At th end of of the potolemaic era the local egyptain were known as Aegyptioi, from the toponym Aegyptos (Egypt). The Word Aegyptos itself is derived from the ancient name of the capital Memphis, Ha ka Ptah,’the house of the soul of Ptah,’Which was the main deity of the pantheon of Memphis, the ancient capital and thus of the hole country. Removing the aspired H, confusing between k and g and finally adding the os greek syllabus, we have the word Aegyptos. When the Arabs conquered Egypt in AD 641 the name Aegyptioi was transcribed in the Arabic alphabet, which lacks vowels and the letter ‘p.’ The word thus became Qbt, pronounced qibt, from where the word ‘Copt’ is derived. Since then the word Qbt is used to indicate the local population of Christian religion, Though since its origins it refers to the Egyptian in general.