tol sirion

place name. *Island of Sirion

An island in the river Sirion (S/120), a combination of tol(l) “island” and the river name.

Conceptual Development: In Silmarillion drafts from the 1930s, this name appeared as Tolsirion (LR/128).

Elements

Word	Gloss
tol(l)	“island, (high steep-sided) isle”
Sirion	“Great River”