'non-migratory' originates from the Latin word 'migratorius,' where 'migrare' meant 'to move from one place to another.' The prefix 'non-' indicates the negation of this action.

'migratorius' transformed into the English word 'migratory,' and with the addition of the prefix 'non-,' it became 'non-migratory.'

Initially, it meant 'not moving from one place to another,' and this meaning has largely remained the same in modern usage.