/ əkˈsiːd; NAmE / verb accede (to sth) ( formal )
1.
to agree to a request, proposal, etc. :
[ v ]
He acceded to demands for his resignation.
[also v speech ]
2.
[ v ] to achieve a high position, especially to become king or queen :
Queen Victoria acceded to the throne in 1837.
—see also accession
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WORD ORIGIN
late Middle English (in the general sense come forward, approach ): from Latin accedere , from ad- to + cedere give way, yield.