'tolerate' originates from Latin, specifically the word 'tolerare,' where 'toler-' meant 'to bear or endure.'

'tolerare' transformed into the Old French word 'tolerer,' and eventually became the modern English word 'tolerate' through Middle English.

Initially, it meant 'to bear or endure,' but over time it evolved into its current meaning of 'to allow or accept something unpleasant.'