ered luin

place name. Blue Mountains

The “Blue Mountains” in western Beleriand and eastern Eriador (S/54, 91), also named Ered Lindon (S/123). This name is a combination of the plural of orod “mountain” and the adjective luin “blue”, which has the same singular and plural forms.

Conceptual Development: In Silmarillion drafts from the 1930s, this name appeared as N. Eredluin “Blue Mountains” (SM/121, LR/267), but at this stage its second element was the lenited plural of N. lhûn, as is clear from its variant name N. Lhúnorodrim (Ety/LUG²).

Ered Luin

noun. blue mountains

ered (pl. of orod “mountain”), luin (pl. of lûn, lhûn “blue”)

Ered Luin

'Blue Mountains'

topon. 'Blue Mountains'. . This gloss was rejected.

eredluin

place name. Blue Mountains

lhúnorodrim

place name. Blue Mountains

A variant name for Eredluin in The Etymologies from the 1930s (Ety/LUG²), a combination of lhûn “blue” and the class-plural of orod “mountain”.