Where did the term nappy come from?

The term "nappy" is derived from the Word "napkin," which originally referred to a cloth used for wiping or protecting. In British English, "nappy" specifically came to denote a diaper for infants. The term is often used in the UK and other Commonwealth countries, while "diaper" is more commonly used in American English. Over time, "nappy" has also been adopted in various contexts, including discussions around natural hair textures.