Sindarin name of Q. Vingilótë (PM/370), a combination of gwing “foam” and loth “flower” (Ety/LOT(H), WIG).
Conceptual Development: In Gnomish Lexicon from the 1910s, the elements of this name were inverted as Lothwing(a) “Foam Flower” (GL/46, 55) and also appeared as Gwingalos (GL/46). In The Etymologies from the 1930s, it became N. Gwingloth, and this is the source of the derivation given above (Ety/LOT(H), WIG; EtyAC/LOT(H)).
foam-flower; gwing (“spindrift, flying spray”) + loth (“flower”) S form of Q Wingelot, Wingelóte; in PM:370, the first element is said to come from Bëorian wing.