Either exchanged letters with someone, or matched up with and was in agreement or harmony with something.
From Medieval Latin 'correspondere,' from Latin 'com-' (together) + 'respondere' (to answer). The double meaning split in the 1600s.
Before email and texting, 'correspondence' meant your entire written relationship—people would carefully draft letters to friends they might not see for months, making every word count in ways we've almost forgotten.
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