Pronoun: no person at all. Noun: a person who is not important or not well known.
Formed in English from “no” + “body,” first appearing in Middle English. Originally it meant literally “no person,” and later gained the sense of an unimportant person.
It’s funny that “somebody,” “anybody,” and “nobody” all use “body” to mean “person,” even though we usually think of bodies as just the physical part. In older English, “body” and “soul” together really meant the whole person, so “nobody” is like saying “no whole person at all.”
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