A loa (or löa, plural löar) was a name used by the Elves for a single year; also called a Coranar.
The word was used especially in the Westlands and (in contrast to the astronomical coranar) took into consideration (as generally the Elves did) the seasonal changes in vegetation.
J.R.R. Tolkien, Christopher Tolkien (ed.), Morgoth's Ring, "Appendix to the Index: Elvish words and terms", p. 471
- ↑ J.R.R. Tolkien, The Lord of the Rings, Appendix D, "The Calendars"