erstwhile Synonyms

quondam sometime once old at one time formerly former erst one-time onetime down memory lane yore olden days whilom oldest theretofore then before this recent radically in the past ancient history no longer latter-day back when long ago earlier in former times bypast in the olden days ex eons ago prior previously erewhile eldest ci-devant cast-off bygone beforetime before antecedent anciently already aforetime ex- foregoing heretofore previous prevenient