An adjective appearing as an element in the name S. Landroval “Broad Winged” (PE17/63). In The Etymologies of the 1930s, however, its immediate precursor was a noun N. rhofal (with the Noldorin-style sound change of initial r to voiceless rh) glossed “pinion, great wing (of an eagle)” under the root ᴹ√RAM (Ety/RAM).
Neo-Sindarin: For purposes of Neo-Sindarin, I would assume that roval can be either an adjective for “winged” or a noun for a “pinion” (feathered part of a wing), especially of great birds like eagles.
n. wing. >> Landroval, raw, rov-