- fân (veil, also used of the manifested body of a Vala), construct fan, pl. fain, 2) faun (pl. foen, coll. pl. fonath)
Middle Telerin
spania
noun. cloud
There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
Middle Primitive Elvish
spāna
noun. cloud
Gnomish
glum
noun. cloud
lum
noun. cloud
Early Quenya
aulo
noun. cloud
fanya
noun. cloud
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.
Nandorin
spenna
noun. cloud
Noldorin
faun
noun. cloud
faun
noun. cloud
Sindarin
fân
cloud
faun
cloud
(pl. foen, coll. pl. fonath)
fân
cloud
(veil, also used of the manifested body of a Vala), construct fan, pl. fain
Quenya
fána
cloud
fána (2) noun "cloud" _(SPAN, VT46:15). _Cf. fana.
lumbo
cloud
lumbo noun "cloud" (pl. lumbor in Markirya), also glossed "gloom; dark, shade" (PE17:72, 168). In early "Qenya", lumbo was glossed "dark lowering cloud" (LT1:259)
ungo
cloud, dark shadow
ungo noun "cloud, dark shadow" (UÑG)
Derived from a stem SPAN "white" (LR:387), but hardly a direct cognate of Quenya fanya and Telerin spania (both probably from spanjâ), nor a direct cognate of Sindarin faun, stated to be derived from spâna. Rather spenna must derive from spannâ, sc. the stem SPAN with the adjectival ending -nâ (or possibly the simpler adjectival ending -â combined with a medial strengthening n > nn). As for the change of a to e, cf. scella from skalnâ.