A word for “a head of hair, a person’s hair as a whole” appearing in The Shibboleth of Fëanor from 1968 (PM/345). In notes from 1965 Tolkien instead gave Q. findilë for “head of hair” (PE17/17). I would use the 1968 word findessë for purposes of Neo-Quenya; see the entry for findë for more suggestions on the application (Neo) Quenya hair words.
Quenya
findessë
head of hair, a person's hair as a whole
findessë
noun. head of hair, person’s hair as a whole
findë
hair
findë (1) noun "hair" (especially of the head) (PM:340), "a tress or plait of hair" (PM:345), "tress, braid of hair, lock of hair" (SPIN)
findilë
head of hair
findilë noun "a head of hair". Compare findessë. (PE17:17)
loxë
hair
loxë (1) ("ks")noun "hair" (LOK). In later sources Tolkien uses findë, findessë, findilë for "hair", leaving the conceptual status of loxë uncertain.
findilë
noun. head of hair
finë
hair
finë (1) (stem *fini-, given the primitive form ¤phini) noun "a hair" _(PM:340, PE17:17) or "larch" (SPIN)_
findessë noun "a head of hair, a person's hair as a whole" (PM:345). Compare findilë.