Periwinkle (noun)

1. A creeping evergreen plant that has blue, pink, or white flowers and glossy leaves. It grows on coastal rocks and sand dunes.
2. A small marine snail with a spiral shell, found in rocky seashores.
3. A pale blue or lavender color.

Origin:

From old english perwincla, of uncertain origin.

Examples:

1. She planted periwinkles along the garden path.
2. The rocky shore was covered in periwinkles.
3. The periwinkle color matched her dress perfectly.
4. The periwinkle flowers were a welcome sight in the spring.
5. The periwinkle shell was a popular souvenir from the beach.