A word appearing in its instrumental forms talainen or talalínen “with/on wings” in various versions of the ᴱQ. Oilima Markirya from around 1930 (MC/213, 220). In the earliest drafts of the poem, the form was ᴱQ. alainen “upon wings” (PE16/062). In a glossary associated with one of the drafts, Tolkien translated tala as “sail” (PE16/75), perhaps indicating the translation “wings” was metaphorical.
Early Quenya
velunte
noun. sail
velu
noun. sail
tala
noun. sail
A word appearing as a noun ᴱQ. velunte “sail” in the Qenya Lexicon of the 1910s under the early root ᴱ√VELU “unroll” (QL/100). In the contemporaneous Gnomish Lexicon, Tolkien compared G. belon “sail” to Q. velu (GL/22), but that could be a reference to the root.
Neo-Quenya: I would retain ᴺQ. veluntë “sail” for purposes of Neo-Quenya, based on a Neo-Root ᴺ√BELU “unroll”.