'pitfall' originates from Middle English, specifically the words 'pit' and 'fall,' where 'pit' meant 'a hole in the ground' and 'fall' referred to 'a trap or snare.'

'pitfall' changed from the Middle English word 'pitfalle' and eventually became the modern English word 'pitfall'.

Initially, it meant 'a trap for catching animals,' but over time it evolved into its current meaning of 'a hidden danger or difficulty.'