The Fennas word for boat is bac. Bac is an unusual last name. Bac is an unusual masculine first name. In French bac means ferry, tub, vat. In Irish bac means barrier, blockage. BAC is the NYSE symbol for Bank of America. Bac is the name of places in Martinique, Slovakia, Bosnia & Herzegovina, and Cameroon.
How did I come up with this word? The Welsh word for boat is cwch, the Irish word for boat is bád, and the Breton word for boat is bag. In addition, since I looked it up, the Cornish word for boat is skath.