A word for “feather” in the Declension of Nouns from the early 1930s (PE21/33-34), probably a later iteration of ᴱQ. pilin “feather” from the Qenya Lexicon of the 1910s (QL/74). The word ᴹQ. pilin was more frequently glossed “arrow”.
Qenya
qesse
noun. feather
esse
noun. name
qessetéma
noun. q-series
qesset
noun. pillow
pilen
noun. feather
A noun for “pillow” in The Etymologies of the 1930s under the root ᴹ√KWES having to do with feathers (Ety/KWES). Given its cognate N. pesseg, its stem form is probably quessec- as suggested by Helge Fauskanger (QQ/quesset).