- mionn
- an oath, Irish mionn, g. mionna, Early Irish mind, oath, diadem; the mind was the "swearing reliques" of a saint, Old Irish mind, a diadem, insignia, Old Welsh minn, sertum: *menni-; cf. Old High German menni, neck ornament, Anglo-Saxon mene, neck chain, Latin monile. See muineal further. Stokes gives the stem as *mindi-, but no etymology. Windisch (Rev.Celt. $$+5) equates minn with Latin mundus, ornament, world.
Etymological dictionary of the Gaelic language. Alexander Gairm Publications. 1982.