N,N-Diethyl-meta-toluamide, also called DEET (/diËt/) or diethyltoluamide, is the most common active ingredient in insect repellents. It is a slightly yellow oil intended to be applied to the skin or to clothing, and provides protection against mosquitoes, ticks, fleas, chiggers, leeches, and many biting insects. 1 History.
r n km.t in hieroglyphs. Written records of the ancient Egyptian language have been dated from about 3200 BC. Egyptian is part of the Afro-Asiatic group of languages and is related to Berber and Semitic (languages such as Arabic, Amharic, Tigrinya and Hebrew).The language survived until the 5th century AD in the form of Demotic and until the Middle Ages in the form of Coptic.gyptian is one of the oldest recorded languages known. The national language of modern day Egypt is Egyptian Arabic, which gradually replaced Coptic Egyptian as the language of daily life in the centuries after the Muslim conquest of Egypt. Coptic is still used as a liturgical language by the Coptic Church.
Latin was spoken in the middle ages. Demotic was a spoken language till the 5th century AD. Demotic language is a mixture of Egyptian script derived from northern forms of hieratic that was prevalent in the Delta and the stage of Egyptian language between Late Egyptian and preceding Coptic period.fter this period, it continued to be in use as the liturgical language of the Egyptians, Christians, Copts. The Old Egyptian language was spoken for around 500 years from 2600 BC onwards.