adv. 25B6; adverb FORMERLY, earlier (on), before, hitherto, once, at one time, in the past, in days/times gone by, in bygone days, in times past, in former times; in advance, already, beforehand; formal heretofore.
PREVIOUSLY
Meaning of PREVIOUSLY in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012