Meaning of Cefn

1. The first meaning of the word "Cefn" is, "the back;" *e.g.* "Cefn dyn," "the back of a man." 2. It also signifies "the upper part of the ridge of some elevated and exposed land." As a prefix, its meaning depends upon the fact whether the word attached to it be an adjective or a substantive. If an adjective be attached, it has the *second* signification; *i.e.* it is the upper part of some exposed land, having the particular quality involved in the adjective, such as, "Cefndu," "Cefngwyn," "Cefncoch," the black, white, or red headland. When a substantive is attached, it has the *first* signi…