Today, December 14, 2014, is National Bouillabaisse Day. Bouillabaisse is a traditional Provençal fish stew originating from the port city of Marseille. The French and English form bouillabaisse comes from the Provençal Occitan word bolhabaissa, a compound that consists of the two verbs bolhir (to boil) and abaissar (to reduce heat).