'proficiently-done' originates from the word 'proficient,' which comes from Latin, specifically the word 'proficere,' where 'pro-' meant 'forward' and 'facere' meant 'to do or make.'

'proficere' transformed into the Old French word 'proficient,' and eventually became the modern English word 'proficient' through Middle English. The suffix '-ly' was added to form the adverb 'proficiently,' and 'done' was appended to create the compound adjective 'proficiently-done.'

Initially, 'proficient' meant 'advancing or making progress,' but over time it evolved into its current meaning of 'skilled or competent.'