ag·gior·na·men·to \əˌjȯrnəˈmen(ˌ)tō\noun (-s) Etymology: Italian, from aggiornare to bring up to date, from a- to (from Latin ad-) + giorno day, from Late Latin diurnum — more at journey : a bringing up to date < the enthusiasts of aggiornamento and the defenders of older, stricter ways — Time >