cerin is a Sindarin word meaning "circular mound or artificial hill".
 See also
- Sindarin haudh ("funeral mound")
- ↑ Wayne G. Hammond and Christina Scull (eds), The Lord of the Rings: A Reader's Companion, p. 309 (citing from the Unfinished index)
- ↑ 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. 55