A noun appearing as G. fathli “tasselled fringe” in the Gnomish Lexicon of the 1910s, an elaboration of G. fath/fass “tassel” (GL/34).
Neo-Sindarin: I’d adapt this word as ᴺS. fathol “(tasselled) fringe” for purposes of Neo-Sindarin based on ᴺS. fass “tassel” from primitive ✱phasḷ, where the th arose from ancient sl becoming thl, after which the ḷ syllabified to ol.
A noun appearing as G. fath or fass “tassel” in the Gnomish Lexicon of the 1910s, cognate to ᴱQ. fatse (GL/34).
Neo-Sindarin: I’d use the form ᴺS. fass “tassel” for purposes of Neo-Sindarin for better compatibility with the later Quenya form [ᴹQ.] fas (fass-) “fringe”, and I would further assume it was derived from the 1930s root ᴹ√PHAS having to do with shaggy or tangled hair (Ety/PHAS).