Sindarin or Grey Elven was originally an elvish dialect that arose in Beleriand among the grey Elves of the first Age from their own local Telerin dialect. Later it became the common lingua franca among the elves and was even preserved among the Dúnadan nobility as a language of etiquette.
Genealogy of Sindarin
- Primitive Quendian
- Nelyarin Avarin
- common Eldarin
- common Telerin
- Beleriandic or Lam Eglathon
- Mithrimin or northern Sindarin (strongly influenced by Noldorin)
- Noldoric-Sindarin or Golodhbaeth (Dialect developed by the Sindarin-Speaking Noldor)
- Dialect of the Wandering Tribes of Beleriand
- Doriathrin or (Iathrin or Iathrimin)
- Falathrin (still more archaic and closer to Falmarin)
Tolkien's Sindarin was mainly inspired by Welsh, and perhaps to a much lesser extent, by Greek.Tolkiens earliest predecessor of later Sindarin was Goldogrin, originally intended as the mothertongue of the Noldoli, which later evolved into Sindarin, the Language of the Ilkorin of Beleriand.