Quenya 

túra

big, great

túra adj. "big, great" (PE17:115), related to words for power and apparently referring to a more abstract greatness than words like haura "huge". Cf. taura, túrëa. Apparently initial element of Túrosto.

túra

adjective. big, great, great, big

@@@ is at odds with the other meanings of this root, which generally have to do with mastery, conquest and non-physical power

Túrosto

gabilgathol

Túrosto place-name "Gabilgathol", a dwelling of the Dwarves (Sindarin Belegost; the names mean "Mickleburg", "Great Fortress"). Apparently túra + osto.

polda

big

polda adj. "big" (PE17:115), "strong, burly" (POL/POLOD)

polda

adjective. big, big; [ᴹQ.] strong, burly; [ᴱQ.] mighty, powerful