'consistently-separated' originates from the combination of 'consistent' and 'separated', where 'consistent' comes from Latin 'consistere' meaning 'to stand firm' and 'separated' from Latin 'separare' meaning 'to divide'.

'consistere' transformed into the Old French 'consister' and eventually became the modern English word 'consistent'. 'Separare' transformed into the Old French 'separer' and eventually became the modern English word 'separate'.

Initially, 'consistent' meant 'standing firm', and 'separated' meant 'divided'. Over time, 'consistently-separated' evolved to mean 'regularly divided'.