A noun for “face” in the Gnomish Lexicon of the 1910s, related to the verb G. gwinta- “to see” (GL/46); see that entry for possible etymologies.
Gnomish
ant
noun. cheek; face
antha
adjective. upper
antha-
verb. to give
anthor(in)
adjective. lofty (of mountains)
anthos
adverb. up, above
anthum
preposition. upwards, cg. onto
annor(in)
adjective. lofty
annuir
adjective. lofty
daira-
verb. to play
dara
adjective. lofty
fiont(ha)
adjective. later
gag
noun. jaw
gogail
noun. mouth
gogel
noun. mouth
gogìl
noun. mouth
gwint
noun. face
gwintha-
verb. to face
mem
noun. mouth
o-
conjunction. he
odra
adverb. very
on
pronoun. he
ortha
adjective. upper
orthi
adverb. up
raina-
verb. to return
thith
noun. dust
A noun in the Gnomish Lexicon of the 1910s glossed “dust”, appearing below other forms like G. thisin “parched, withered” (GL/73). The latter is clearly a cognate of ᴱQ. sisin from the contemporaneous Qenya Lexicon, and hence is derived from the root ᴱ√SISI as it appeared in that document (QL/84), though its Gnomish derivatives make it clear the actual root was ✱ᴱ√ÞISI.
ôn
noun. gift
A noun appearing as G. gogel “mouth” in The Gnomish Grammar (GG/8) and as {gogel >} gogíl or gogail “mouth” in the Gnomish Lexicon of the 1910s (GL/40). In the latter document, Tolkien said it was a combination of G. go- “together” and G. cail “lip”, from more archaic forms gwa-caíl, gwa-cil. An unrelated word G. mem “mouth” also appeared in Gnomish Lexicon (GL/57), perhaps related to G. beg “chin” which Tolkien connected to ᴱQ. pé “(closed) mouth” = “the two lips” (GL/57; QL/72).
Neo-Sindarin: I’ve used these Gnomish words as the inspiration for a neologism ᴺS. gobem “mouth”, based on the (neologism) ᴺS. pemp “lip”, where the reduction of -mp to -m finally is an irregular assimilation to the preceding voiced b: -mp > -mb > -m.