Ysgafnâd, n. a lightening

Ysgafnâu, v. to lighten

Ysgafniad, n. a making light

Ysgafnu, v. to make light

Ysgaffell, n. ledge, rim, brow

Ysgaffellu, v. to form a ledge

Ysgaid, n. a sprinkling

Ysgainc, n. a branch; a skain

Ysgall, n. the thistle

Ysgallog, a. full of thistles