Cethinen, n. a swarthy one
Cethino, v. to make dusky; to make ugly; to become ugly
Cethledd, n. melody, singing
Cethlydd, n. the cuckoo
Cethr, n. spike, a nail
Cethrawl, a. pricking
Cethrawr, n. a pike
Cethren, n. a spike, a nail
Cethrin, a. piercing; horrid
Cethru, v. to drive; to pierce