'transitory' originates from Latin, specifically the word 'transitorius,' where 'trans-' meant 'across' and 'ire' meant 'to go.'

'transitorius' transformed into the Old French word 'transitoire,' and eventually became the modern English word 'transitory' through Middle English.

Initially, it meant 'to go across or pass,' but over time it evolved into its current meaning of 'lasting for a short time.'