Human mobility is an old-age world phenomenon involving individuals who move within or out of some geographical bordered space. Internal migration illustrates the former case which has been well experienced by Algerian cities, notably Oran. After the country's independence from France in 1962, a massive number of Europeans evacuated Oran, paving the way to void-filling by newcomers from diverse Algerian, particularly western, regions. Contact between the arrivals and the indigenous inhabitants has resulted in contact between their different dialects; and, koineisation, whereby a new dialect...