Bonglwm, n. knob on the end
Boniad, n. the aft ox in a team
Bonllost, n. the tail end
Bonog, adj. stemmed, stalked, thick-shanked
Bonsang, n. base, ayer
Bontin, n. a buttock; rump
Bor, n. centre, focus
Bore, n. the dawn, morning: a early; morning
Boreddydd, n. a dayspring
Borefwyd, n. breakfast