Specifically Cornish according to my book:
Abloecc, Adwen, Alef, Almer, Arlen, Arranz, Austell, Berwin, Bideven, Blyth, Brannoc, Branwell, Brastias, Brengy, Bryn, Cadan, Cador, Conan, Costentyn, Cubi, Cuilliok, Cury, Daveth, Denzel, Digory, Docco, Dogmael, Donyerth, Elowen, Gelvinak, Gerens, Gerent, Glastenen, Golvan, Gorlas, Goron, Guerrar, Gwynek, Haco, Hicca, Howel, Jacca, Jago, Jory, Jowan, Kea, Kenan, Kenver, Kenwyn, Kevern, Kew, Kitto, Kynon, Madern, Mark, Marrec, Masek, Massen, Mawews, Maegan, Melan, Melor, Meriasek, Meryn, Myghal, Nadelek, Neythen, Nicca, Padern, Pasco, Pawly, Peder, Pencast, Petroc, Petrog, Rewan, Rhydach, Ruan, Rumo, Ryol, Selevan, Talan, Tewdrig, Tremaine, Trevedic, Trevelyan, Wella, Withell, Wyllow, Yann, Zenan, Zethar