Chagrin n. A keen feeling of mental unease, as of annoyance or embarrassment, caused by failure, disappointment, or a disconcerting event. “He decided to take the day off, much to the chagrin of his boss.”
Did You Know?
Chagrin comes from French, in which it means “grief,” “sorrow,” or essentially the same thing as our “chagrin,” and in which it is also an adjective meaning “sad.” Some etymologists have linked this “chagrin” with another French chagrin, meaning “rough leather or “rough skin.” Supposedly, the rough leather used to rub, polish, or file became a metaphor in French for agitating situations. English-speakers have also adopted the leathery “chagrin” into our language but have altered the spelling to “shagreen.” (m-w.com)
First Known Use