'fixation' originates from Latin, specifically the word 'fixatio,' where 'fixare' meant 'to fasten or fix.'

'fixatio' transformed into the French word 'fixation,' and eventually became the modern English word 'fixation' through Middle English.

Initially, it meant 'to fasten or fix something,' but over time it evolved into its current meaning of 'an obsessive interest or the action of making something stable.'