'out-of-date' originates from the phrase 'out of date,' where 'out' meant 'beyond' and 'date' referred to a specific time or period.

'out of date' was used in Middle English to describe something that was beyond its time of relevance, eventually becoming the modern English term 'out-of-date.'

Initially, it meant 'beyond the current time,' but over time it evolved into its current meaning of 'no longer in use or fashionable.'