Deir Abu Da'if is a Palestinian village in Jenin governorate, about 7 km east of the city on the Marj Ibn Amer plain, and one of the largest villages east of Jenin by population. Its name goes back to its first settler, Muhammad al-Da'if, who came from Hebron some 400 years ago; the place was first called 'Dar Abu Da'if' and later became Deir Abu Da'if. The village is absent from 16th-century tax records, suggesting a modern foundation, Byzantine pottery has been found there, and Edward Robinson noted it in 1838. It now has about 6,000 residents, basic and secondary schools for boys and girls, health centres, five mosques and a stadium.
Source: Arabic Wikipedia — «دير أبو ضعيف» — https://ar.wikipedia.org/wiki/%D8%AF%D9%8A%D8%B1_%D8%A3%D8%A8%D9%88_%D8%B6%D8%B9%D9%8A%D9%81
