Erst - Definition
erst
adv 1: at a previous time; "at one time he loved her"; "her
erstwhile writing"; "she was a dancer once"; [syn:
once, formerly, at one time, erstwhile, erst]
adv 1: at a previous time; "at one time he loved her"; "her
erstwhile writing"; "she was a dancer once"; [syn:
once, formerly, at one time, erstwhile, erst]