Ferry boat
Easton's Bible Dictionary 1897
(2 Sam. 19:18), some kind of boat for crossing the river which the men of Judah placed at the service of the king. Floats or rafts for this purpose were in use from remote times (Isa. 18:2).
International Standard Bible Encyclopedia 1915
fer'-i-bot (2Sa 19:18).
See SHIPS AND BOATS.