Camaraderie (noun)

1. A feeling of trust and friendly goodwill among people who spend a lot of time together.
2. Mutual trust and friendship among people who spend a lot of time together.

Origin:

1860, from french camaraderie, from spanish camarada, from cama "bed" (see chamber) + -ada, from -ada, noun suffix indicating a group of people (such as bandada, from bando "band"); from the idea of men sleeping in the same room, hence companionship.

Examples:

1. The soldiers shared a strong sense of camaraderie after surviving the war together.
2. The team members felt a sense of camaraderie after working together on the project.
3. The camaraderie among the cast helped to make the show a success.
4. He felt a camaraderie with his co-workers after a long time working together.
5. Their camaraderie was evident as they laughed and joked together.