Tiphsah

"Passing over; ford, one of the boundaries of Solomon's dominions" "(1 Kings 4:24), probably "Thapsacus, a great and wealthy town on" "the western bank of the Euphrates," about 100 miles north-east" of Tadmor. All the land traffic between the east and the west passed through it. Menahem undertook an expedition against this "city, and "smote Tiphsah and all that were therein" (2 Kings" 15:16). This expedition implied a march of some 300 miles from "Tirzah if by way of Tadmor, and about 400 if by way of Aleppo;" "and its success showed the strength of the Israelite kingdom," "for it was practically a defiance to Assyria. Conder, however," "identifies this place with Khurbet Tafsah, some 6 miles west of" Shechem.

Definition of Tiphsah:
"passage; leap; step; the passover"