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.
   

Tiphsah, passage; leap; step; the passover