noneyoudaoicibaDictYouDict[none 词源字典]
none: [OE] Etymologically, none is simply ‘not one’. It was formed in the Old English period from the negative particle ne and ān, ancestor of modern English one. It was originally both a pronoun and an adjective, but in the latter role it has been replaced by its reduced form no.
=> one[none etymology, none origin, 英语词源]
none (n.)youdaoicibaDictYouDict
Old English nan (pron.) "not one, not any," from ne "not" (see no) + an "one" (see one). Cognate with Old Saxon, Middle Low German nen, Old Norse neinn, Middle Dutch, Dutch neen, Old High German, German nein "no," and analogous to Latin non- (see non-). As an adverb from c. 1200. As an adjective, since c. 1600 reduced to no except in a few archaic phrases, especially before vowels, such as none other, none the worse.