Quest (noun)

1. A search or pursuit made in order to find or obtain something.
2. An expedition or a journey made in order to find or do something.

Origin:

Derived from the old french word 'queste', which means 'a search or pursuit'.

Examples:

1. The knight went on a quest to find the Holy Grail.
2. She embarked on a quest to find her ancestral roots.
3. The students went on a quest to find the lost city of gold.
4. The explorers went on a quest to discover new lands.
5. His lifelong quest was to find a cure for cancer.