Foible (noun)

1. A minor weakness or character flaw in a person, especially one that is peculiar to an individual.
2. A minor weakness or failing of a person or thing.

Origin:

From french foible, from foi ("faith") + -ble (suffix indicating a state or condition). it means "a minor weakness or character flaw in a person, especially one that is peculiar to an individual".

Examples:

1. He had a few foibles, but they were endearing rather than annoying.
2. She had a foible for chocolate and couldn't resist it.
3. His foible was that he couldn't resist a good argument.
4. Her foible was that she was always late.
5. He had a foible for collecting old coins.