Odyssey (noun)

1. A long, eventful, and usually illustrious journey or series of journeys.
2. An epic poem written by Homer in the 8th century BC, telling the story of Odysseus and his ten-year journey home after the fall of Troy.

Origin:

From greek ὀδύσσεια (odýsseia), from ὀδύσσειν (odýssein, "to sing, to be a bard, to be wroth"), from ὀδύσσω (odússo, "i sing"), from ᾠδή (ōidḗ, "song, vers.e")

Examples:

1. His life has been an odyssey of adventure and discovery.
2. The Odyssey is one of the most famous works of ancient Greek literature.
3. The company's journey to success has been an odyssey filled with challenges and setbacks.
4. Her odyssey to find her lost family took her around the world.
5. The astronaut's odyssey in space was filled with danger and excitement.