also: ごしんぞ
noun
wife (of a prominent, recently married man)
A somewhat dated term for the wife of a newly married man of high social standing. Often used in historical or literary contexts.
彼は御新造を連れてパーティーに現れた。
He appeared at the party with his new wife.
あの御新造はとても上品な方だ。
That gentleman's new wife is a very refined person.
The term combines the honorific prefix 御 (ご) with 新造 (しんぞう), literally 'newly made', referring to a newly married woman. The exact historical derivation is uncertain.