N. Erebras loc. “Lonely Mountain”
Earlier name for Erebor appearing in The Etymologies from the 1930s (EtyAC/ERE), a combination of ereb “isolated” and the lenited form of rhas “horn”.
Reference ✧ EtyAC/ERE ✧ “Lonely Mountain”
Elements
ereb | “isolated” | ✧ Ety/ERE | |
rhas | “horn [of both animals and mountains]” | soft-mutation | ✧ EtyAC/ERE (ras) |