Noldorin 

brenia-

verb. to endure

Noldorin [Ety/BORÓN; EtyAC/BORÓN] Group: Eldamo. Published by

brenia-

verb. to endure

The form bronio in the Etymologies is a misreading according to VT/45:7

Noldorin [Ety/353, VT/45:7] Group: SINDICT. Published by