I think that’s it? excuse me I have forgotten your surname," he bowed politely to Razumihin) "insulted me by misrepresenting the idea I expressed to you in a private conversation, drinking coffee, that is, that marriage with a poor girl who has had experience of trouble is more advantageous from the conjugal point of view than with one who has lived in luxury, since it is more profitable for the moral character.
There are no more uses of "conjugal" in the book.
Show samples from other sources
That day I received a letter from my benefactor in which he wrote about "conjugal duties."
Leo Tolstoy -- War and Peace
I start noticing small signs of conjugal existence.