'assuredly' originates from Middle English, specifically the word 'assured,' where 'assure' meant 'to make certain.' 'Collected' comes from Latin, specifically the word 'collectus,' where 'col-' meant 'together' and 'legere' meant 'to gather.'

'assuredly' changed from the Old French word 'asseurer' and eventually became the modern English word 'assuredly.' 'Collected' transformed from the Latin word 'collectus' and eventually became the modern English word 'collected.'

Initially, 'assuredly' meant 'certainly' or 'without doubt,' and this meaning has largely remained the same in modern usage. 'Collected' initially meant 'gathered together,' which has also remained consistent.