Gwrtholwg, n. a retrospect
Gwrtholygu, v. to take a retrospect, to look contrarily
Gwrthosod, v. to place in opposition
Gwrthosodiad, n. a placing in opposition, opposition
Gwrthran, n. a counter share
Gwrthred, n. a recurrence
Gwrthreithiad, n. antinomian
Gwrthres, n. an adverse row
Gwrthrif, n. a counter reckoning
Gwrthrimyn, n. a pair of pincers