Gwyllysiad, n. a willing
Gywyllysio, v. to will; to desire
Gwlylysyiol, a. willing, desirous
Gwyllysu, v. to will; to desire
Gwymon, n. sea weed
Gwymp, a. smart, trim; fair
Gwympedd, n. smartness
Gwyn, n. white; what is fair: a. white; fair; blessed
Gwyn, n. rage, smart; lust
Gwynad, n. a whitening