interjection, nounWord forms: plural aˈdieus or aˈdieux (əˈdju
; ədyo̅oˈ; əˈdu
; ədo̅oˈ; French aˈdjø; ȧdyöˈ)
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'adieu'ME < OFr a dieu, to God (I commend you) < L ad, to + Deum, acc. of Deus, God; current use chiefly from modern Fr