Topic summary
Nappy

Extracted from the Wikipedia article Diaper.
Etymology
The Middle English word diaper originally referred to a type of cloth rather than the use thereof; "diaper" was the term for a pattern of repeated, rhombic shapes, and later came to describe white cotton or linen fabric with this pattern. According to the Oxford Dictionary, it is a piece of soft cloth or other thick material folded around a baby's bottom and between its legs to absorb and hold its bodily waste. The first cloth diapers consisted of a specific type of soft tissue sheet, cut into geometric shapes. The pattern visible in linen and other woven fabrics was called "diaper". This meaning of the word has been in use in England since the 1590s. By the 19th century, baby diapers were being sewn from linen, giving us the modern-day reading of the word "diaper". This usage stuck in the United States and Canada following the British colonization of North America, but in the United Kingdom, the word "nappy" took its place. Most sources believe nappy is a diminutive form of the word napkin, which itself was originally a diminutive.