/ ˌsuːpəˈsiːd; ˌsjuː-; NAmE ˌsuːpərˈs-/ verb
[ vn ] [ often passive ] to take the place of sth/sb that is considered to be old-fashioned or no longer the best available :
The theory has been superseded by more recent research.
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WORD ORIGIN
late 15th cent. (in the sense postpone, defer ): from Old French superseder , from Latin supersedere be superior to, from super- above + sedere sit. The current sense dates from the mid 17th cent.