Fausset's Bible Dictionary
A Canaanite royal city, whose king was smitten by Joshua (Joshua 11:1; Joshua 12:20; Joshua 19:25). Within Asher; perhaps the modern Chaifa, in the Septuagint Ceaph . Conder (Pal. Expl. Qy. Star., April, 1876) identifies with Yasif. The hieratic papyrus (Brit. Mus., 1842, pl. 35-61), mentioning Aksapou (identified by M. Chabas with Achshaph), is the account of an Egyptian officer's travels in a chariot from near Aleppo to the vicinity of the sea of Saltlee, and thence to Egypt via Joppa. He is called a Mohar; his record is at least 3,000 years old. ("Voyage d'un Egypt. en Syrie, en Phenic., en Palest.": F. Chabas, Paris, 1866.)
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Fausset, Andrew R. Entry for 'Achshaph'. Fausset's Bible Dictionary. https://www.studylight.org/dictionaries/eng/fbd/a/achshaph.html. 1949.