Llygoden, n. a mouse. Llygoden ffrengig, rat
Llygol, a. brightening; livid
Llygorn, n. a lamp, a lanthorn
Llygota, to catch mice
Llygotwr, n. a mouse catcher, a mouser
Llygrad, n. a corrupting
Llygradwy, a. corruptible
Llygredig, a. damaged, depraved, corrupted
Llygredigaeth, n. corruption
Llygredd, n. corruptness