'irrelevant' originates from the Latin word 'relevare,' where 're-' meant 'again' and 'levare' meant 'to raise.'

'relevare' transformed into the French word 'relever,' and eventually became the modern English word 'relevant' through Middle English, with 'irrelevant' forming as its negative counterpart.

Initially, it meant 'to raise again,' but over time it evolved into its current meaning of 'not connected or related to something.'