Livelihood (noun)

1. A means of supporting one's existence, especially financially.
2. A person's profession or way of making a living.
3. The resources or conditions necessary for the maintenance of life.

Origin:

Derived from the old english 'leoflīċnes' which meant 'life, state of being'. first recorded in english in the 15th century.

Examples:

1. Fishing is the main livelihood for the residents of the coastal village.
2. She found a new job that offered better pay and security for her family's livelihood.
3. The drought caused a severe impact on the farmers' livelihoods.
4. He changed his livelihood from a teacher to a software developer.
5. Many people in the region rely on tourism for their livelihood.