Tristesse is a French word meaning sadness. Tristesse may also refer to; Bonjour Tristesse (Hello Sadness), a 1954 novel by Françoise Sagan. Bonjour Tristesse (film), a 1958 film of the novel. Tristesse Hivernale, a demo by black metal Neige-led band Alcest, released in 2001. La Tristesse Durera (Scream to a Sigh), a 1993 single by the Manic Street Preachers. Tristesse de la Lune (Sadness of the Moon), an electropop group founded by Kati Roloff and Gini Martin. Tristesse, an album by Michel Jonasz.
https://en.wikipedia.org/wiki/Tristesse