'avocation' originates from Latin, specifically the word 'avocatio', where 'a-' meant 'away' and 'vocare' meant 'to call.'

'avocatio' transformed into the French word 'avocation', and eventually became the modern English word 'avocation' through Middle English.

Initially, it meant 'a calling away or diversion,' but over time it evolved into its current meaning of 'a hobby or minor occupation.'