"growth of long hair on the back of the neck and shoulders," characteristic of the horse, lion, and some other animals, Old English manu "mane of a horse," from Proto-Germanic *mano (source also of Old Norse mön, Old Frisian mana, Middle Dutch mane, Dutch manen, Old High German mana, German Mähne "mane"), from PIE *mon- "neck, nape of the neck" (source also of Sanskrit manya "nape of the neck," Old English mene "necklace," Latin monile "necklace," Welsh mwng "mane," Old Church Slavonic monisto, Old Irish muin "neck"). The Scandinavian languages have the word in a diminutive form (Danish manke, Swedish manke). Extended use, of a person's hair, is from late 14c.

by 1930, from ballet + -mane "one who has a mania for," which is ultimately from Greek and related to mania "madness."

word-forming element of French origin, "one who has a mania for," ultimately from Greek -manes "ardent admirer," related to mania "madness" (see mania).

also manilio, "metal (usually copper) ring or arm-bracelet sold or bartered by European traders among African peoples," 1550s, from Spanish manilla, from Latin monilia, plural of monile "collar, necklace," from PIE *mon- "neck, nape of the neck" (source also of mane). Influenced in Spanish by Spanish mano "hand."

late 14c., "to curl, to twist into short, stiff waves or ringlets" (of the hair, beard, mane, etc.) from crisp (adj.) or else from Old French crespir, Latin crispare, from the adjectives. Meaning "to become brittle" is from 1805. Related: Crisped; crisping; crispation.

from Spanish mañana, "tomorrow," from cras manñana, literally "tomorrow early," from Vulgar Latin *maneana "early," from Latin mane "in the morning," from PIE *ma- "good," with notion of "occurring at a good time, timely, early" (compare matins; and see mature (v.)). "Often taken as a synonym of easy-going procrastination said to be found in Spanish-speaking countries" [OED].

before vowels chaet-, word-forming element meaning "hair," also, in scientific use, "spine, bristle," from Latinized form of Greek khaite "long, loose, flowing hair" (of persons, also of horses, lions), from an old PIE word for "hair, mane," source also of Avestan gaesa- "curly hair," gaesu- "'curly haired," Modern Persian ges "hair that hangs down, curls;" Middle Irish gaiset "bristly hair."