Byrbwyll, a. thoughtless, giddy
Byrbwylldra, n. thoughtlessness
Byrder, n. shortness
Byrdon, n. bass in music
Byrdra, n. shortness, brevity
Byrddiad, n. a boarding
Byrddio, v. to board
Byrddwn, n. bass in music
Byrfys, n. the little finger
Byrhoedledd, n. shortness of life