orodorim is a Sindarin word meaning "mountain-chain". It is only attested in the compound name Thangorodrim.
The word orodrim ("range of mountains") is listed by David Salo in his Neo-Sindarin glossary.
orodrim likely consists of orod meaning "mountain", and the suffix -rim which is a collective plural meaning "a great number, a host".
 See also
orodrim is the Noldorin word for "mountain range".
In the Etymologies, Noldorin orodrim derives from root ÓROT ("height, mountain").
- ↑ J.R.R. Tolkien, "Words, Phrases and Passages in Various Tongues in The Lord of the Rings", in Parma Eldalamberon XVII (edited by Christopher Gilson), p. 116
- ↑ David Salo (2004), A Gateway to Sindarin, p. 327
- ↑ Compound Sindarin Names in Middle-earth (cf. Thangorodrim) at Tolkiendil.com (accessed 14 July 2011)
- ↑ 4.0 4.1 J.R.R. Tolkien, Christopher Tolkien (ed.), The Lost Road and Other Writings, Part Three: "The Etymologies", p. 379