'vexation' originates from Latin, specifically the word 'vexationem,' where 'vexare' meant 'to shake or disturb.'

'vexationem' transformed into the Old French word 'vexacion,' and eventually became the modern English word 'vexation' through Middle English.

Initially, it meant 'to disturb or harass,' but over time it evolved into its current meaning of 'annoyance or frustration.'