you (honorific, formal, used by men in letters)
A respectful second-person pronoun used by men in written correspondence, especially to male equals or superiors. Formal and somewhat old-fashioned; not used in casual speech.
your residence (archaic honorific)
Archaic honorific term for the addressee's residence. No longer used in modern Japanese; encountered only in historical texts.
I hope this letter finds you in good health and spirits.
I would like to hear your opinion.
In old documents, 貴殿 can refer to the addressee's residence.
Compound of 貴 (honorific prefix) and 殿 (lord, residence). The second sense 'your residence' is an archaic extension of the honorific use.