pronoun
Honorific second-person pronoun used to address government officials, military personnel, or in very formal correspondence. Rare in modern spoken Japanese; mostly found in official documents or historical settings.
貴官のご尽力に感謝申し上げます。
I express my gratitude for your efforts, sir/ma'am.
貴官におかれましては、ますますご清栄のこととお慶び申し上げます。
I hope this letter finds you in continued good health and prosperity.
Compound of 貴 (ki, 'noble') + 官 (kan, 'official'). The exact historical derivation is uncertain, but the spelling is conventionally associated with addressing officials.