Byriad, n. a breviat, an arm
Byriau, a short plough yoke
Byrllysg, n. a truncheon
Byrnaid, n. a truss, a bundle
Byrniad, n. a trussing, a bundling
Byrniaw, v. to truss, to bundle
Bys, n. a finger
Bysiad, n. a fingering
Bysio, v. to finger
Bysle, n. a finger-stall