'fear' originates from Old English, specifically the word 'fǣr,' where 'fǣr' meant 'calamity or sudden danger.'

'fǣr' transformed into the Middle English word 'fer,' and eventually became the modern English word 'fear.'

Initially, it meant 'calamity or sudden danger,' but over time it evolved into its current meaning of 'an unpleasant emotion caused by the belief that someone or something is dangerous.'