Unpin (verb)

To remove a pin from.

Origin:

From the old english word "unpinnan" meaning to remove a pin from.

Examples:

1. She unpinned her hair and let it fall down her shoulders.
2. He unpinned the badge from his shirt.
3. I had to unpin the brooch to clean it.
4. She unpinned the flower from her dress.
5. They had to unpin the curtain to wash it.