'consistently-used' is a compound word formed from 'consistently' (from 'consistent') and 'used' (past participle of 'use'). 'Consistent' originates from Latin, specifically the word 'consistere,' where 'con-' meant 'together' and 'sistere' meant 'to stand.' 'Use' comes from Latin 'uti,' meaning 'to use.'

'Consistently-used' is a modern English compound, combining the adverb 'consistently' and the past participle 'used.' 'Consistent' came from Middle English via Old French from Latin, and 'use' came from Old French 'user' from Latin 'uti.'

Initially, 'consistent' meant 'standing together' or 'firm,' and 'use' meant 'to employ.' The compound 'consistently-used' now means 'used in a consistent manner.'