A (deleted) noun in the Gnomish Lexicon of the 1910s glossed “holder, stand”, also used to mean the same as (deleted) G. fath “possession, property; rights, legality” (GL/33).
Gnomish
fast
noun. wash, cleaning
fast
noun. holder, stand
canga-
verb. to tangle
A verb appearing as G. canga- “to tangle” in the Gnomish Lexicon (GL/25), probably based on the early root ᴱ√KANGA or ᴱ√KAŊA “weave, twine” (QL/45, 98). Elsewhere in GL Tolkien had the similar and probably related intransitive verb cinga- or cangi- “to go wrong, get tangled”.
Neo-Sindarin: I would retain the verb ᴺS. canga- for purposes of Neo-Sindarin based on a Neo-Root ᴺ√KANGA “✱tangle”, incorporating the meanings of both transitive “tangle” and intransitive “get tangled, [by extension] go wrong”.
pieg
noun. pin
A noun for “pin” in the Gnomish Lexicon of the 1910s (GL/64), clearly related to ᴱQ. piek “pin” (QL/73).
A noun in the Gnomish Lexicon of the 1910s glossed “wash, cleaning”, related to the verb G. fas- “wash” (GL/34).