Cymry, Cymru, 226, 281.

Cynan (Cinnan), [404], [406], [480].

Cynđelw, 58, 202, [456].

Cynffig, [402]: see Kenfig.

cynhebrwng, 274.

Cynlas ab Cynan, [530].

cynnil, 264.

Cynric Rwth, [673], [674].

Cynyr, [693].

cyrfaglach, cryf-, cyfr-, [450], [591].