Derrilyn was the name of a river in the poem Errantry by Bilbo Baggins.[1] The name was not actually Elvish but an invention in the Elvish style.[2]
It is unknown if Derrilyn referred to an actual river in Middle-earth, or if it was just an invention by the poet.
References
| Legendary locations in Arda | |
| Islands: | Isle of Meneltarma |
|---|---|
| Mountains and Hills: | Astulat · Faraway · Mountains of the Moon · Merlock Mountains |
| Regions: | Aerie · Delving · Belmarie · Fantasie · Last Desert · Sindanórie · Thellamie · Tode |
| Rivers: | Derrilyn |
| Other: | Caves of the Forgotten · Gorbelgod · Tong |