Båt, boat.
Båta, to avail, to be of use, to boot, to profit.
Båtnad, advantage, benefit, profit.
Bäck, brook, rivulet.
Bädd, bed; bädda, to make the bed.
Bäfva, to tremble, to shake.
Bäfver, castor, beaver.
Bägare, goblet, cup.
Bägge, both.
Bälg (bläster), bellows.