A noun for “branch” in The Etymologies of the 1930s derived from ᴹ✶golbā under the root ᴹ√GOLOB (Ety/GÓLOB). It was an element in the name N. Gurutholf “Wand of Death” (Ety/ÑGUR).
Conceptual Development: The Gnomish Lexicon of the 1910s had G. olf or olfin(g) “branch, wand, stick” (GL/62), an element in the earlier name G. Gurtholfin “Wand of Death” (GL/41; LT2/83). The Gnomish Lexicon originally had two words: olf “branch” and olfin “wand”, but these were deleted and merged into one word with two variants (GL/41). See ᴱN. alt for other “branch” words from the 1910s and 20s.
In Tolkien’s later writings, N. Gur(u)tholf became S. Gurthang “Iron of Death” (S/210; WJ/83). However, there was a word Q. olba “branch” in notes from 1968, derived from √OLOB (PM/341).
Neo-Sindarin: The 1968 Quenya word might mean Noldorin golf should be updated to [ᴺS.] ✱olf, but I prefer to assume there was a variant root √(G)OLOB which would allow us to retain golf “branch” for purposes of Neo-Sindarin.
A noun in The Etymologies of the 1930s glossed “stem” under the root ᴹ√TELEK “stalk, stem, leg” (Ety/TÉLEK). Its Quenya cognate Q. telco “stem, leg” continued to appear in Tolkien’s later writings (PE17/122; LotR/1118).
Neo-Sindarin: Conceivably this word might also mean “leg” like its Quenya cognate. Such a thing is indicated by the name Telchandir, the Sindarin/Noldorin equivalent of Q. Telcontar “Strider” (AotM/62). However, I recommend using this word only for its attested gloss “stem” and suggest ᴺS. teleg for “leg”; see that entry for details.