Earlier name of S. Dagor Bragollach (LR/280), a combination of dagor “battle” and the lenited form of bregedur “wild fire” (Ety/BERÉK, UR).
Noldorin
ûr
noun. fire, heat
ûr
noun. wide
ûr
noun. fire
ûr
adjective. wide
dagor vregedúr
proper name. Battle of Sudden Fire
An adjective in The Etymologies of the 1930s glossed {“large” >>} “wide” under the root ᴹ√UR “wide, large, great” (Ety/UR).