Gwrthnaws, n. an antipathy
Gwrthnerth, n. a counter power
Gwrthneu, n. an objection
Gwrthnewid, n. counter change
Gwrthnod, n. a counter mark
Gwrthnysig, a. refractory
Gwrtho, v. to withstand
Gwrthod, v. to refuse, to reject; n. refusal, rejection
Gwrthodiad, n. a rejection
Gwrthol, a. adverse, contrary