A verb appearing in the Gnomish Lexicon of the 1910s as G. braitha- “wrap, swathe” based on G. brach “a shawl, plaid, wrap” (GL/23). The form ᴱN. braith also appeared in Early Noldorin word lists of the 1920s (PE13/139), but it was unglossed and whether it was related is unclear.
Neo-Sindarin: Since I retain ᴺS. brach “shawl, wrap”, I’d also keep this Gnomish verb as a derivative of the Neo-Root ᴺ√BARAK “wrap”, but updated to ᴺS. braetha- “to wrap, swathe” since ai became ae in Sindarin of the 1950s and 60s.
A set of unglossed forms written next to ᴱN. braith (also unglossed) in Early Noldorin word lists of the 1920s (PE13/139), their meaning and etymology are unclear.