Gwrthladd, n. resistance
Gwrthlais, n. counter sound
Gwrthlam, n. a counter step
Gwrthlef, n. a cry against
Gwrthlewyrch, n. reflected light
Gwrthlif, n. counter current
Gwrthlun, n. an antitype
Gwrthlys, n. repugnance
Gwrthlyw, n. a counter guide
Gwrthnaid, n. a leap backwards