'sluggishly-produced' originates from the combination of 'sluggishly' and 'produced'. 'Sluggishly' comes from 'sluggish', which originates from Middle English 'slugge', meaning 'lazy person'. 'Produced' comes from Latin 'producere', where 'pro-' meant 'forward' and 'ducere' meant 'to lead'.

'Sluggishly' changed from the Middle English word 'slugge' and eventually became the modern English word 'sluggishly'. 'Produced' evolved from the Latin 'producere' through Old French 'produire'.

Initially, 'sluggish' meant 'lazy or slow-moving', and 'produced' meant 'to bring forth'. Over time, 'sluggishly-produced' evolved to mean 'produced in a slow or lethargic manner'.