Altruism (noun)

The belief in or practice of disinterested and selfless concern for the well-being of others.

Origin:

From french altruisme, from autrui ("other peopl.e")

Examples:

1. The volunteer work was an expression of his altruism.
2. Altruism is a key component of many religious and philosophical belief systems.
3. Her actions were motivated by pure altruism, she didn't expect anything in return.
4. His decision to donate a large portion of his wealth to charity was an act of altruism.
5. The rescue mission was a display of altruism and bravery.