'consistently' originates from Latin, specifically the word 'consistere,' where 'con-' meant 'together' and 'sistere' meant 'to stand.' 'Checked' comes from Old French 'eschequier,' meaning 'to inspect or verify.'

'consistere' transformed into the Old French 'consister,' and eventually became the modern English word 'consistently.' 'Eschequier' evolved into the Middle English 'chekken,' leading to the modern English 'check.'

Initially, 'consistere' meant 'to stand together,' evolving into 'consistent' as 'regular or steady.' 'Eschequier' meant 'to inspect,' which remains largely unchanged in modern usage.