'justly-cancelled' originates from the combination of 'justly,' meaning 'in a fair or rightful manner,' and 'cancelled,' meaning 'called off or annulled.'

'Justly' comes from the Old French 'juste,' and 'cancelled' comes from the Latin 'cancellare,' meaning 'to cross out.'

Initially, 'justly' meant 'in accordance with justice,' and 'cancelled' meant 'to cross out.' Together, they evolved to mean 'cancelled in a fair manner.'