Old English manu "mane," from Proto-Germanic *mano (cognates: 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" (cognates: Sanskrit manya "nape of the neck," Old English mene "necklace," Latin monile "necklace," Welsh mwng "mane," Old Church Slavonic monisto, Old Irish muin "neck").