'regularly-joined' originates from the combination of 'regularly' and 'joined', where 'regularly' comes from Latin 'regularis', meaning 'consistent', and 'joined' comes from Latin 'jungere', meaning 'to join'.

'regularly' evolved from the Latin 'regularis' through Old French 'reguler', and 'joined' evolved from Latin 'jungere' through Old French 'joindre'.

Initially, 'regularly' meant 'in a consistent manner', and 'joined' meant 'to connect'. Together, they convey the idea of being consistently connected.