Taur
From Tolkien Gateway
taur is a Sindarin word, with several meanings, depending on the etymology.
It can mean:
- king (of a tribe, not a land) (from târo TA3)
- mighty, vast, sublime; poetic only or in ancient titles and names (from târâ/taurâ TA3/TUR)
- large forest; note that it was used only for large forests, affected by the meaning of its homophones (from taurê TÁWAR)
In Ilkorin (Mithrimin?) taur means both "forest" and "wooden".