Sindarin 

faen

noun. vapour; [disembodied] spirit

A word for “vapour” in some 1957 notes derived from √PHAY “spirit”, also referring to disembodied spirits as the equivalent of Q. fairë for “spirit” (NM/237).

Neo-Sindarin: For purposes of Neo-Sindarin, I’d use better-known S. faer for a disembodied spirit (MR/349), a more direct cognate of Q. fairë, but I see no reason why faen can’t be used for vapour.

faen

adjective. radiant, white

Sindarin [Ety/381, X/OE] Group: SINDICT. Published by

fain

noun/adjective. white

Sindarin [Ety/387, WR/288, RC/268, VT/46:15, X/EI] Group: SINDICT. Published by

fain

noun/adjective. cloud

Sindarin [Ety/387, WR/288, RC/268, VT/46:15, X/EI] Group: SINDICT. Published by

faen

radiant

faen (white). No distinct pl. form.

faen

white

(radiant). No distinct pl. form.

faen

radiant

(white). No distinct pl. form.

fain

white

; no distinct pl. form.

glân

white

1) glân (clear), lenited lân, pl. glain. (UT:390, VT45:13). Note: a homophone means ”hem, border”. 2) nimp (nim-) (pale); no distinct pl. form. 3) faen (radiant). No distinct pl. form. 4) fain; no distinct pl. form.

glân

adjective. white, [bright shining] white; [N.] clear; [G.] pure, †bright; [ᴱN.] clean

nim

white

_adj. _white. >> Nimbrethil

Sindarin [(PE17 Sindarin Corpus) PE17:19] < T. _nimbi _white. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

nim

white

_adj. _white (usual word). >> nimp, nimras

Sindarin [(PE17 Sindarin Corpus) PE17:168] < _nimbĭ _< _nimpĭ_. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

nim

adjective. white

Sindarin [PE17/019; PE17/168; SA/nim] Group: Eldamo. Published by

silivren

adjective. (white) glittering

Sindarin [LotR/II:I, RGEO/72] silif+-ren. Group: SINDICT. Published by

uilos

noun/adjective. always white, ever white as snow

Sindarin [RGEO/74, Letters/278, UT/55] ui- + loss "everlasting snow, ever (white as) snow. Group: SINDICT. Published by

uilos

noun/adjective. a small white everlasting flower also called simbelmynë or "evermind"

Sindarin [RGEO/74, Letters/278, UT/55] ui- + loss "everlasting snow, ever (white as) snow. Group: SINDICT. Published by

gloss

white as snow, dazzling white

(in compounds -los), lenited ’loss; pl. glyss.

glân

white

(clear), lenited ’lân, pl. glain. (UT:390, VT45:13). Note: a homophone means ”hem, border”.

nimp

white

(nim-) (pale); no distinct pl. form.

silivren

glittering white

(lenited hilivren; pl. *silivrin**). *Verb