'confidently' originates from Latin, specifically the word 'confidere,' where 'con-' meant 'with' and 'fidere' meant 'to trust.' 'Collected' comes from Latin 'collectus,' the past participle of 'colligere,' meaning 'to gather together.'

'Confidere' transformed into the Old French word 'confidant,' and eventually became the modern English word 'confidently.' 'Collectus' evolved into the Old French 'collecter,' leading to the modern English 'collected.'

Initially, 'confidently' meant 'with trust,' and 'collected' meant 'gathered together.' Over time, 'confidently-collected' evolved to describe a calm and assured demeanor.