ᴹ√KWES root. “*feather”
An unglossed root in The Etymologies of the 1930s whose derivatives had mainly to do with feathers, such as ᴹQ. qesse “feather” and N. pesseg “pillow” (Ety/KWES). Tolkien’s continued use of Q. quessë “feather” in his later writings indicates its ongoing validity (LotR/1122). A possible precursor to this root was unglossed ᴱ√PEKE from the Qenya Lexicon of the 1910s whose derivatives had to do with plumes (QL/73). There is also ᴱ√PILI² whose derivative had to do with arrows and feathers (QL/74), but in later writings ᴹ√PILIN seems to have narrowed in sense specifically to “arrow” (Ety/PÍLIM; EtyAC/PÍLIM).
Reference ✧ Ety/KWES
ᴱ√PEKE root. “*plume”
An unglossed root in the Qenya Lexicon of the 1910s with derivatives like ᴱQ. pekte/G. pectha “plume” (QL/73; GL/63). It was compared to ᴱ√PEQE of similar meaning. Later “feather” words were derived from ᴹ√KWES (Ety/KWES).
Reference ✧ QL/73