Ringlet (noun)

1. A small ring or circle, especially of hair.
2. A small ring or circle-shaped curl of hair.

Origin:

Ringlet from middle english ringlete, from old french, diminutive of ringle, from ring ("ring") + -et (diminutive suffix).

Examples:

1. She had ringlets in her hair.
2. The little girl had ringlets in her hair.
3. Her hair was styled in ringlets.
4. He had tight ringlets of hair.
5. She was wearing her hair in ringlets.