From Tolkien Gateway
The name is composed by an element for "evening", and dim which refers to dusk/gloaming.
Portrayal in adaptations
2007: The Lord of the Rings Online:
- Evendim was a region of Eriador with Lake Evendim dominating most of the map. On the southern coast of the lake lies Annúminas. Oatbarton lies to the very south on the road to The Shire. Along the south-eastern side lay the Brandywine River. The lake was watched over by the spirit Gwindeth, the Blue Lady of Nenuial, and the surrounding Arnorian ruins were preserved by a faction of Rangers known as the Wardens of Annúminas.
- J.R.R. Tolkien, The Lord of the Rings, Appendix D, "The Calendars"
- J.R.R. Tolkien, The Lord of the Rings, "The West of Middle-earth at the End of the Third Age" [map]
- J.R.R. Tolkien, "Nomenclature of The Lord of the Rings" in Wayne G. Hammond and Christina Scull (eds), The Lord of the Rings: A Reader's Companion, p. 773