Ystlysu, v. to go to one side
Ystod, n. a course; a layer; a swathe
Ystodi, v. to dispose a course range, layer, or swathe
Ystodiad, n. a laying of a course
Ystofen, n. a warping tray
Ystofi, v. to range; to warp
Ystofiad, n. ranging, a warping
Ystol, n. a stool
Ystola, n. scarf, a stole
Ystolciad, n. a butting