Blotch (noun)

A patch of discoloration or an irregular spot on the skin or surface.

Origin:

The word blotch is derived from the middle english word blotche, which comes from the old english blōt. the word has been in use since the 14th century.

Examples:

1. The leopard's coat was covered in dark blotches, making it difficult to spot in the jungle.
2. The paint job was ruined by large blotches of different colors.
3. She was self-conscious about the blotch on her face that she had covered with makeup.
4. The blotch on the manuscript made it difficult to read the text.
5. The blotch on the apple indicated that it was overripe and not fit to eat.