ᴺS. [N.] ^cefn adj. “of earth, earthen” (Category: Earth, Land)
A Noldorin adjective in The Etymologies of the 1930s glossed “of earth, earthen” and given as a derivative of the root ᴹ√KEM (Ety/KEM). Hiswelókë’s Sindarin Dictionary suggested an alternate (Neo) Sindarin spelling cefn (HSD/cefn) which is more than in keeping with Tolkien’s usual spelling conventions from the 1930s, but I prefer cevn as it makes the pronunciation clearer; see the discussion of the Sindarin phoneme [v] for more details.
References ✧ Ety/KEM; EtyAC/KEM
|ᴹ√KEM > cevn||[kemna] > [kemn] > [kevn]||✧ Ety/KEM|