Mottle (verb)

1. To mark with spots or blotches of color.
2. To discolor or mark irregularly with different shades or colors.
3. To make uneven or variegated in appearance.

Origin:

From the word "mottle" meaning "spotted or blotched appearance".

Examples:

1. The disease mottled the leaves of the plant.
2. The paint was mottled with different shades of blue.
3. The fabric was mottled with different colors.
4. The skin was mottled with age spots.
5. The surface was mottled with stains.