Gwrthgrist, n. an antichrist
Gwrthgrych, a. cross-grained
Gwrthgur, n. a counter stroke
Gwrthgwymp, n. apostacy, a falling away
Gwrthgwyn, n. a counter complaint
Gwrthgyfarch, n. a rencounter
Gwrthgyfer, n. a contrast
Gwrthgyfle, n. a counter position
Gwrthgyfnewid, n. a counter change
Gwrthgyngor, n. dehortation