"That means matrimony," said Temperance Miller, following them out of sight with her eyes.
That she had never, by look, word, or sign, encouraged a man to approach her—that she had felt herself sufficient to herself, and had in the independence of her girlish heart fancied there was a certain degradation in renouncing the simplicity of a maiden existence to become the humbler half of an indifferent matrimonial whole—were facts now bitterly remembered.
There are no more uses of "matrimony" in the book.
Show samples from other sources
Carlotta stepped back, to better deliver the truth that, when she contemplated holy matrimony, made her heart beat faster.
Piper Kerman -- Orange Is the New Black
I haven’t been to visit him at his condo in several days, but I hear from him that he and Liv have been shopping for their matrimonial bed, each of theirs a bit too historied for the spending of restful nights.