correspond

Etymology

From Middle French correspondre, from Latin com- (“with”) + respondeo (“to match, to answer to”), equivalent to co- + respond.

verb

1. (intransitive, constructed with to) To be equivalent or similar in character, quantity, quality, origin, structure, function etc.
2. (intransitive, constructed with with) to exchange messages, especially by postal letter, over a period of time.
   I've been corresponding with my German pen pal for three years.
3. (obsolete) To have sex with.
   He pleaded guilty to the charge, so far as acknowledging that he had corresponded with other women lately, in order to get the better of his affection for me, but the experiment had failed, and he found that he should be for ever miserable. 1751, Tobias Smollett, chapter 88, in The Adventures of Peregrine Pickle, volume III
   When a Babylonian and his wife had a mind to correspond, they always first lit up the fuming pan, imagining it improved the passion. 1756, Thomas Amory, Life of John Buncle