wrinkle

skrynkla, rynka, skrynkla sig

1. A small furrow, ridge or crease in an otherwise smooth surface.

2. A line or crease in the skin, especially when caused by age or fatigue.

3. (transitive) To make wrinkles in; to cause to have wrinkles.

4. (intransitive) To pucker or become uneven or irregular.

5. (intransitive, of skin) To develop irreversibly wrinkles; to age.