A noun in the Gnomish Lexicon of the 1910s glossed “hair, long tresses”, a term Tolkien said was used especially of women (GL/33). Its primitive form appearing on another page as ᴱ✶fīđ’lī (GL/35). Its form illustrates a number of Gnomish sound changes, notably how long ī became ai and how ðl became gl; these sound changes were abandoned in later Sindarin.
Gnomish
hai
adverb. in good time, punctually, early
hai
interjection. go!, hence, begone, away
hai
adverb. there (by him)
haimadri
adjective. lunch, food in morning, elevens
haig
noun. way, road, path
hair
adjective. timely, punctual, in good time
haitha-
verb. to hie, go, fare, walk
haithin
adjective. gone, departed, lost
haid
noun. way, road, path
haidra
adverb. timely, punctual, in good time
haidri
noun. forenoon, after breakfast
haim
adjective. gone, departed, lost
hairen
feminine name. Spring
haiva
interjection. hence!, begone, be off; (as av.) away, hence, off
faigli
noun. hair, long tresses
fidhrin
adjective. haired
The adjective G. fidhrin “haired” appeared as an element in the word G. logrifidhrin (or logrifindel) “curly haired” from the Gnomish Lexicon of the 1910s (GL/54). It is apparently an elaboration of fidhra “[collective] hair” (GL/35).
Neo-Sindarin: I would adapt this word as ᴺS. fidhren “having hair, -haired” < ✱spinrinā using the more typical Sindarin adjective suffix S. -ren, where the dhr is the result of the Sindarin sound change whereby [[s|[nr] became [ðr]]]. I think this is better than coining an Sindarin variant of Q. finda “having hair, -haired” (PM/340), since a cognate of that word would collide with S. fen(n) “door”.
fidhrad
adjective. hairy, hirsute
A word appearing as G. {fidhra >>} fidhrad hairy, hirsute” in the Gnomish Lexicon of the 1910s, an adjectival form of fidhra “collective hair” (GL/35).
nictha-
verb. to rain, hail, snow
An impersonal verb in the Gnomish Lexicon of the 1910s appearing as G. nictha “it is raining, hailing, is snowing” (GL/60), clearly based on the early root ᴱ√NIQI “white” (QL/66) with qt [kʷt] > cth [xθ].
Neo-Sindarin: If updated to Neo-Sindarin, this verb would be ᴺS. nítha- since since k spirantalized and then vocalized before th. However, I would limit its use to “snow, hail”, and for the verb “rain” I’d instead use ᴺS. uil.
aithl
noun. spring
aithyl
noun. spring
baith
noun. garment
craitho-
verb. to spit
crectha-
verb. to spit
dâ
adjective. high
fautha-
verb. to snow
flan
noun. scorn
fôtha-
verb. to snow
A verb in the Gnomish Lexicon of the 1910s glossed “it snows” with variants fôtha- and {fontha- >>} fautha-, elaborations of G. fô “snow” (GL/35).
ing
noun. fish
lenchos
noun. distance
maiwest
noun. welcome
maiwethrin
adjective. welcome
mô
noun. hand
peleg
noun. axe
saig
adjective. hungry
saith
noun. hunger
sog-
verb. to drink
tubrin
adjective. hidden
tuil
noun. spring
ubra-
verb. to rain
A noun in the Gnomish Lexicon of the 1910s glossed “lunch, food in morning, elevens”, a combination of G. hai “early” and G. madri “meal” (GL/20).