A verb for “to sail” appearing in the phrase ᴹQ. qe e·kárie i kirya aldaryas, ni kauva kiryasta menelyas “if he finishes the boat by Monday, I shall be able to sail on Wednesday”, from the Quenya Verbal System (QVS) of 1948 (PE22/121). It is a verb form of kirya [cirya] “ship”, so more exactly appears to mean “to sail [a ship], ✱make a ship go”.
Conceptual Development: The English-Qenya Dictionary of the 1920s had ᴱQ. salta- “sail, used of any smooth steady progression” (PE15/77), while the slightly later Early Qenya Word-list had ᴱQ. lut- “float, sail” (PE16/134).
Neo-Quenya: For purposes of Neo-Quenya, I would ciryasta- only for the act of making a ship go: i hesto ciryasta i cirya “the captain sails the ship”. For the movement of the ship itself, I would us lut- “float, [ᴱQ.] sail”: i cirya lute i earessë “the ship sails on the sea”.
A verb given as {vilin >>} wilin “I fly” in The Etymologies of the 1930s under the root ᴹ√WIL “fly, float in air” (Ety/WIL). Tolkien gave a past form ville that was allowed to stand even after {vilin >>} wilin.
Conceptual Development: The Qenya Lexicon of the 1910s had ᴱQ. ’wili- “sail, fly, float” under the early root ᴱ√GWILI (QL/104). The contemporaneous Gnomish Lexicon had ᴱQ. vil- as the cognate to G. gwil- “sail, float, fly” (GL/45).
Neo-Quenya: For purposes of Neo-Quenya, I would use the form vil- “to fly” in keeping with the general principle that w was pronounced and spelt v in modern Quenya; see the entry for [w] for discussion. For “sail, float” I would use other verbs such as lut-.