Grwysed, n. a gooseberry
Grwyswydden, n. gooseberry-tree
Grwyth, n. a murmur
Grwythiad, n. a murmuring
Grwytho, v. to murmur
Gryd, n. a scream; war-hoop
Grydiau, v. to scream, to whoop
Grydiant, n. a screaming out
Grydio, v. to scream, to whoop
Grydwst, n. a murmur