'inconsistently-joined' originates from the combination of 'inconsistent' and 'joined', where 'inconsistent' comes from Latin 'inconsistens', meaning 'not standing together', and 'joined' from Old French 'joindre', meaning 'to connect'.

'inconsistently-joined' evolved from the combination of the words 'inconsistent' and 'joined', which were used separately in Middle English and later combined in modern English.

Initially, 'inconsistent' meant 'not standing together', and 'joined' meant 'connected'. Over time, the combined term 'inconsistently-joined' came to mean 'not uniformly connected'.