renew

Synonyms: begin again brace breathe new life into bring up to date continue exhilarate extend fix up freshen gentrify go over mend modernize overhaul prolong reaffirm reawaken recommence recondition recreate reestablish refit refresh regenerate rehabilitate reinvigorate rejuvenate remodel renovate reopen repair repeat replace replenish restate restock restore résumé resuscitate retread revitalize revive spruce stimulate transform

Antonyms: finish halt kill stop