Sindarin 


noun. great fortress

beleg (“great, mighty”) + ost (“fortress”)

Sindarin [Tolkiendil] Group: Tolkiendil Compound Sindarin Names. Published by


place name. Mickleburg, (lit.) Great Fortress

Sindarin name of the Dwarven city of Kh. Gabilgathol, translated “Mickleburg” (S/91) and “Great Fortress” (WJ/209). This name is a compound of beleg “mighty” and ost “fortress” (SA/beleg, os(t)).

Conceptual Development: The name G. Belegost appeared in the earliest Lost Tales, already with the etymology given above (LT2/230, LT2A/Belegost). In one place it appeared in an extended form Ost Belegost (LT2/244).

The name reappeared in Silmarillion drafts from the 1930s, where it was translated “Great Fortress” alongside its Dwarven name Gabilgathol (LR/274). The name N. Belegost was translated “Great City” in The Etymologies (Ety/BEL), where its decomposition was made explicit as Beleg-ost (EtyAC/OS).


  • Kh. Gabilgathol “Great Fortress” ✧ WJI/Belegost; S/091; SI/Belegost; WJ/209; WJ/209; WJ/209; WJ/389; WJI/Gabilgathol
  • Q. Túrosto “Mickleburg, (lit.) Great Fortress” ✧ WJI/Belegost; WJI/Turosto


beleg“great, mighty; large, big, great, mighty; large, big, [ᴱN.] huge”
ost“fort, fortress, stronghold, citadel; fortified town; enclosure, fort, fortress, stronghold, citadel; (fortified) town, [N.] city; [orig.] [S.] enclosure, [G.] yard”
Sindarin [LotRI/Belegost; MRI/Belegost; PMI/Belegost; S/091; SA/beleg; SA/os(t); SI/Belegost; SI/Mickleburg; UTI/Belegost; WJ/209; WJ/389; WJI/Belegost; WJI/Gabilgathol; WJI/Turosto] Group: Eldamo. Published by



Belegost (beleg + ost) was a Sindarin translation of the original Dwarvish name Gabilgathol and both mean "Great City". Unlike other names of the Silmarillion, the text also gives us an English rendering, which was possibly from Westron: Mickleburg. Mickle is a root meaning "big"; see also Michel Delving. The city's Khuzdul name Gabilgathol contains the elements gabil "great" and gathol "fortress". Túrosto was the name in Quenya for Belegost.

Sindarin [Tolkien Gateway] Published by