Patience (noun)

1. The capacity to accept or tolerate delay, trouble, or suffering without getting angry or upset.
2. The ability to control one's emotions in difficult situations.
3. The willingness to wait for something.

Origin:

Middle english: from old french pacience, from latin patientia, from pati "suffer".

Examples:

1. He had the patience of a saint.
2. She was tested to the limits of her patience.
3. He had to have patience when dealing with her.
4. She had to learn patience with the children.
5. He lost patience and walked out of the meeting.