From Longman Dictionary of Contemporary Englisholdenold‧en /ˈəʊldən $ ˈoʊld-/ adjective → in (the) olden days
Examples from the Corpus
olden• In olden days, it was where babies were delivered and where cadavers were laid out until burial.• What we used to do - you know in the olden days, the ladies used to use stays.• Often in olden days would I be lifted up, and up, and up, for the sake of my plays.• Mainframes were bought by Data Processing Managers in the olden days.• We never used to have wind and rain during autumn in the olden days.• This was a favourite feature in olden times, and a similar petal formation can be seen in some modern bred fuchsias.Origin olden (1300-1400) old 