Kitty was distressed, as she always was, at parting for a couple of days from her husband, but when she saw his eager figure, looking big and strong in his shooting-boots and his white blouse, and a sort of sportsman elation and excitement incomprehensible to her, she forgot her own chagrin for the sake of his pleasure, and said good-bye to him cheerfully.
There are no more uses of "chagrin" in the book.
Show samples from other sources
I bragged about how good our team was and then, much to my chagrin, we lost.
The state cut education funding, much to the chagrin of our school board.