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 (with an i) for “head of hair” (PE17/17).
Conceptual Development: In the Qenya Lexicon of the 1910s, Tolkien had ᴱQ. findl “lock of hair” under the early root ᴱ√FIŘI [FIÐI] (QL/38). In the contemporaneous Name-list to the Fall of Gondolin he had ᴱQ. findil “lock” (PE15/24).
Neo-Quenya: For purposes of Neo-Quenya, I would use findelë for a lock or tress of hair, and 1968 findessë for a full head of hair (PM/345); see the entry for findë for more suggestions on the application (Neo) Quenya hair words.
findelë noun "tress, lock" (PE17:119); apparently a synonym of findë #1, q.v.