Gwinged, n. wriggling; wantonness
Gwingiad, n. a wriggling
Gwingo, v. to wriggle; to wince
Gwingog, Gwingol, adj. wriggling; winking
Gwingwr, n. struggler; wincer
Gwil, n. a shunning; a watch
Gwilfrai, n. a badger
Gwilff, n. an epithet for a mare
Gwilhersu, v. to romp about
Gwilhobain, v. to be galloping