'unjustly-managed' originates from the combination of 'unjustly' and 'managed', where 'unjustly' comes from 'unjust', meaning 'not just', and 'managed' from 'manage', meaning 'to handle or direct with skill'.

'unjustly' evolved from the Old French 'injuste', and 'manage' from the Italian 'maneggiare', eventually forming the modern English term 'unjustly-managed'.

Initially, 'unjustly' meant 'not fair', and 'manage' meant 'to handle', evolving into the current meaning of 'managed in an unfair manner'.