Gwlf, n. a channel, notch
Gwlith, n. dew
Gwlithen, n. dewsnail
Gwlithfalwen, n. a dewsnail
Gwlithiad, n. a falling of dew
Gwlitho, v. to cast a dew
Gwlithog, a. having dew, dewy
Gwlithwlaw, n. small rain
Gwlithyn, n. a dewdrop
Gwlw, n. a channel, notch