erstwhile Synonyms

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