Quirk ( noun , verb )

(As a noun)

Quirk ( noun )

1. A peculiar aspect or characteristic of a person or thing.
2. A sudden twist or turn, as in the course of a conversation or in an action or event.
3. An eccentric or peculiar behavior, habit or custom.

Origin:

Middle english querk, from old english cweorc, cwierc; akin to old high german twerch twist, old english cweccan to bend, warp.

Examples:

1. He had a quirk of always carrying a book with him.
2. She had a quirk of biting her nails when she was nervous.
3. The conversation took a quirk when the topic of politics came up.
4. The novel had a quirk ending that left the readers surprised.
5. The old man had a quirk of counting his steps when he walked.

(As a verb)

Quirk ( verb )

To twist or turn suddenly.

Origin:

Middle english querk, from old english cweorc, cwierc; akin to old high german twerch twist, old english cweccan to bend, warp.

Examples:

1. The conversation quirked when the topic of politics came up.
2. The story quirked when the main character's past was revealed.
3. He quirked his head to the side when he heard the noise.
4. She quirked an eyebrow when she heard the news.
5. The discussion quirked when the topic of religion was brought up.