Gwrysiad, n. ardent, striving
Gwrysio, v. to strive ardently
Gwryswydden, a. gooseberry bush
Gwst, n. humour; a malady
Gwstog, a. distempered, diseased
Gwstu, v. to grow diseased
Gwth, n. a push, a thrust
Gwthgar, a. apt to push
Gwthiad, n. a pushing
Gwthio, v. to push, to thrust