The Collaborative International Dictionary
Correspondency \Cor`re*spond"en*cy\ (k?r`r?-sp?nd"en-s?), n.; pl. Correspondencies (-s?z). Same as Correspondence, 3.
The correspondencies of types and antitypes . . . may
be very reasonable confirmations.
--S. Clarke.
Wiktionary
n. (archaic form of correspondence English)
Usage examples of "correspondency".
Already confederacies and correspondencies of the most extraordinary nature are forming in several countries.
If these correspondencies should ever be laid open to the public eye, they will probably be found not models of comity towards their adversaries.
The documents of your childhood, your letters, correspondencies, notes, books, &c.
Of these were the qualities with which I invested her -- the moral and mental correspondencies to her blonde skin and supple figure.