An archaic form of the pronoun 'own', used in Middle English to indicate possession.
From Old English 'agen' and Old Norse 'eiginn', this pronoun evolved through Middle English as 'eyn' or 'eyne' before becoming the modern 'own'.
Before English settled on 'own', speakers used 'eyn' and its variants—watching pronouns change shows how fluid language is, and how what feels permanent today might sound weird in a few centuries!
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