'autobiographical' originates from Greek, specifically the word 'autobiographia,' where 'auto-' meant 'self,' 'bio-' meant 'life,' and 'graphia' meant 'writing.'

'autobiographia' transformed into the English word 'autobiography,' and eventually became the modern English word 'autobiographical.'

Initially, it meant 'writing about one's own life,' and this meaning has largely remained the same in modern usage.