FANON
Etymology 1
Noun
fanon (plural fanons)
A vestment reserved only for the Pope for use during a pontifical Mass.
Part of a bishop's mitre. They are the tabs extending down from the mitre, often with a cross near the end of each. See lappet.
A maniple.
(surgery) A fold of linen laid under a splint.
Etymology 2
Noun
fanon (uncountable)
(informal, fandom) Elements introduced by fans which are not in the official canon of a fictional world but are widely believed to be or treated as if canonical.
Source: Wiktionary
Fan"on, n. Etym: [F. fanon, LL. fano, fr. OHG. fano banner cloth, G.
fahne banner. See Vane, and cf. Fanion, Confalon.] (Eccl.)
Definition: A term applied to various articles, as: (a) A peculiar striped
scarf worn by the pope at mass, and by eastern bishops. (b) A
maniple. [Written also fannel, phanon, etc.]
Source: Webster’s Unabridged Dictionary 1913 Edition