accede (v.)

c. 1400, "affording access, capable of being approached or reached," from Old French accessible and directly from Late Latin accessibilis, verbal adjective from Latin accessus "a coming near, an approach; an entrance," from accedere "approach, go to, come near, enter upon" (see accede). The meaning "easy to reach" is from 1640s; of art or writing, "able to be readily understood," by 1961 (a word not needed before writing or art often deliberately was made not so). Related: Accessibility.

1580s, "that which is added," also "act of acceding" (by assent, to an agreement, etc.), from Latin accessionem (nominative accessio) "a going to, approach; a joining; increase, enlargement," noun of action from past-participle stem of accedere "approach, enter upon" (see accede). From 1640s as "act of coming to a position or into possession," especially in reference to a throne. Related: Accessional.