'odyssey' originates from Greek, specifically the word 'Odysseia,' where 'Odysseus' was the name of the hero in Homer's epic poem.

'Odysseia' transformed into the Latin word 'Odyssea,' and eventually became the modern English word 'odyssey' through Middle English.

Initially, it referred to the epic poem about Odysseus's journey, but over time it evolved into its current meaning of a long and eventful journey.