The Catalan; Valencian: Diccionari etimològic i complementari de la llengua catalana (or DECat , "Etymological and Complementary Dictionary of the Catalan Language") is an etymological dictionary of Catalan compiled by Joan Corominas with cooperation of Joseph Gulsoy and Max Cahner.[1]
It was published by Curial Edicions Catalanes and consists of nine volumes, published between 1980 and 1991; a tenth volume (2001) contains a "suplement" and indexes. It was designed with the same criteria and methodology as the other major dictionaries by the same author: the Spanish; Castilian: [[Diccionario crítico etimológico de la lengua castellana]] (1954-1957) and the Spanish; Castilian: [[Diccionario crítico etimológico castellano e hispánico]] (1980-1991).