I. verb — [no obj.] (usu. accede to) 1.
‹formal› agree to a demand, request, or treaty
• the authorities did not accede to the strikers’ demands.
‹formal› assume an office or position
• Elizabeth I acceded to the throne in 1558.
‹formal› become a member of an organization
• Albania acceded to the IMF in 1990.
– origin late Middle English (in the general sense ‘come forward, approach’): from Latin accedere, from ad- ‘to’ + cedere ‘give way, yield’.