Gwrthannog, n. dehortation
Gwrthansawdd, contrary quality
Gwrtharddelw, n. counter claim
Gwrtharfod, n. counter stroke
Gwrtharwain, n. a leading back
Gwrthateb, n. replication
Gwrthattal, n. counter stop
Gwrthawel, n. adverse gale
Gwrthban, n. a blanket
Gwythbanu, v. to double mill