I. əˈd(y)ü interjection
Etymology: Middle English, from Middle French, from a to (from Latin ad ) + Dieu God, from Latin Deus — more at at , deity
— used to express farewell
II. noun
( plural adieus or adieux -üz)
Etymology: Middle English, from adieu, interjection
: a civil or affable expression made upon parting : farewell , leave-taking
to make one's adieus