Synonyms 1. harmonize, match, tally. Correspond, agree, accord imply comparing persons or things and finding that they harmonize. Correspond suggests having an obvious similarity, though not agreeing in every detail: Part of this report corresponds with the facts.Agree implies having or arriving at a condition in which no essential difference of opinion or detail is evident: All the reports agree.Accord emphasizes agreeing exactly, both in fact and in point of view: This report accords with the other.
1520s, "to be in agreement, to be in harmony with," from M.L. correspondere, from cor- (see com-) "together, with each other" + respondere "to answer" (see respond). Originally in M.L. of two things in mutual action, but by later M.L. it could
be used of one thing only. In English, sense of "to be similar" (to) is from 1640s; that of "to hold communication with" is from c.1600; specifically "to communicate by means of letters" from 1640s (in mid-18c. it also could mean "have sex").
1570s, from correspond. Not common until 19c., when it took on the adj. function of correspondent. Related: Correspondingly (1836).