noun
Honorific term used to refer respectfully to the listener's family or household. Often used in formal or polite contexts.
ご当家の皆様によろしくお伝えください。
Please give my regards to everyone in your family.
ご当家は代々この地にお住まいだそうですね。
I hear your family has lived in this area for generations.
お宅 is a more common and versatile honorific for 'your house' or 'your family', while ご当家 is more formal and somewhat old-fashioned, often used in ceremonial or respectful contexts.
Combination of the honorific prefix ご (御) and 当家 (とうけ), meaning 'this house/family'. The term is used to refer respectfully to the listener's family.