Brefan, n. a lump of butter
Brefant, n. a windpipe
Breferad, n. a bellowing
Brefiad, n. a lowing; a bleating
Brefu, v. to low; to bleat
Breg, n. a rupture, a fissure
Bregedd, n. fragrility, frailty
Bregol, a. fragile, brittle
Bregu, v. to become fragile
Bregus, a. broken; fractious