1) thûl (pl. thuil), 2) hwest (i chwest, o chwest) (puff, breeze), pl. hwist (i chwist)
Noldorin
thûl
noun. breath
thûl
noun. breath
Sindarin
thûl
breath
thûl
breath
(pl. thuil)
hwest
breath
(i chwest, o chwest) (puff, breeze), pl. hwist (i chwist)
thol-
verb. to roll
Adûnaic
pûh
noun. breath
A noun translated “breath” and fully declined as an example of a Weak I noun (SD/431).
Quenya
foa
breath, puff of breath
foa (1) noun "breath, puff of breath" (VT47:35, 36)
fúmë
noun. breath
A word for “breath” in the Löa Yucainen poem, perhaps related to föa “(puff of) breath”.
pelta-
verb. to roll
A neologism for “to roll” coined by Helge Fauskanger in his NQNT (NQNT), a causative form of √PEL in its verbal sense “go round, encircle, revolve on fixed point”, hence originally “✱to make go round”.
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
Gnomish
thol-
verb. to roll
A verb in the Gnomish Lexicon of the 1910s appearing as G. thol- {“roll. tr. & intr.” >>} “roll” (GL/73). It could be based on some variant ✱ᴱ√ÞOL of the early root ᴱ√TOL+U from the contemporaneous Qenya Lexicon which had derivatives like ᴱQ. tolu- “roll up, furl” (QL/94).
Neo-Sindarin: Since we have no later words for “roll”, I would retain ᴺS. thol- “to roll” for purposes of Neo-Sindarin based on a (Sindarin-only) Neo-Root ✱√THOL. That conflicts from 1964 S. thôl “helmet” which is also derived from √THOL (PE17/188), but in 1957 Tolkien derived this helmet word from √STOL instead (PE17/186), leaving room for ᴺS. thol- “roll”.
A noun in The Etymologies of the 1930s glossed “breath” derived from the root ᴹ√THŪ “puff, blow” (Ety/THŪ). As written in The Etymologies, the actual form was thūl (EtyAC/THŪ).
Conceptual Development: In the Gnomish Lexicon of the 1910s, Tolkien gave G. fest “breath, breathing” (GL/35), likely derived from the early root ᴱ√ǶEHE “breathe” (QL/41) with ƕ becoming f.