/næp/
[noun] A short sleep, usually taken during the day. It can also refer to the soft, raised surface of fabric, such as velvet or carpet.
'Nap' secretly carries two completely unrelated meanings that have travelled from entirely different ancient languages.
The word 'nap' as in a short sleep comes from the Old English word 'hnappian', which meant to doze or to sleep lightly. This word was used by Anglo-Saxon speakers over a thousand years ago, and it carried with it the quiet, fleeting quality of the thing it described — not a deep, full sleep, but a gentle drift into unconsciousness. The Old English 'hnappian' is related to the Old High German 'hnaffezzen', meaning to doze, which tells us that the idea of naming a light sleep with this particular sound was shared across several Germanic languages in early medieval Europe.
As the English language moved through the Middle Ages and shed many of its older Germanic forms, 'hnappian' was simplified into the more recognisable 'nap'. By the 14th and 15th centuries, English speakers were using it both as a verb — to nap, meaning to sleep briefly — and as a noun, meaning the short sleep itself. The word never carried the weight of proper slumber; it always hinted at something casual, unhurried, and slightly stolen from the day.
What makes 'nap' particularly fascinating is that there is a second, completely unrelated 'nap' hiding in the English language. This nap refers to the fuzzy or raised surface on cloth — the soft texture you feel when you stroke velvet or a new carpet in one direction. This word comes from a totally different source: the Middle Dutch word 'noppe', meaning a tuft or fibre of wool, which entered English through trade contact in the medieval textile industry. From Middle Dutch 'noppe', it became Middle English 'nappe', and eventually settled as 'nap'. The cloth trade between England and the Low Countries was so active in the 14th and 15th centuries that many textile words crossed the North Sea along with the goods themselves.
The two naps — the sleeping kind and the fabric kind — have coexisted in English for centuries without causing much confusion, simply because context always makes the meaning clear. Linguists call words like these homonyms: words that share a spelling and sound but have completely different origins and meanings. What is remarkable is that both senses of 'nap' arrived in English at roughly the same historical moment, from two very different directions — one from the deep Germanic roots of the language itself, and one carried in on the winds of international commerce.
Over time, the sleeping 'nap' gave rise to the phrase 'caught napping', meaning to be found unprepared or off guard — a vivid image of someone discovered asleep when they should have been watchful. This phrase appeared in English by the 16th century and is still used today. The fabric 'nap', meanwhile, gave rise to the word 'nappy' in British English, originally referring to a soft cloth — a connection that eventually led to the common British term for a baby's diaper. Both little words, in their quiet way, have woven themselves deeply into the fabric of everyday English life.