Pronoun, nominative singular masculine or nominative/accusative singular neuter; also used as determiner/adjective
Etymology. From Middle High German kein, itself from Old High German kein (not one). Derived from the negative prefix ke- (related to Gothic ni, English no) combined with ein (one). The -er ending here is a pronoun suffix creating a standalone pronoun form, parallel to jener or dieser.
Dictionary entry by Claude.
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