Sindarin 

cûl veleg

place name. Bigload

A mountain near Tarlang’s Neck, mentioned only in Tolkien’s Nomenclature of the Lord of the Rings, where he translated the name as “Bigload” (RC/536). It appears to be a combination of cûl “load” and the lenited form veleg of the adjective beleg “big, great” (RC/536).