Save Gender Feminine Usage Medieval Basque, Basque Pronounced Pron. /ka.ˈti.ʃa/(Basque) [key·simplify] Meaning & History Medieval Basque name of uncertain origin and meaning. One theory suggests that it might be a variant of Katalin and thus one of the international forms of Katherine.In any case, this name was first recorded in Etxaleku (in the Navarre area) in 1548.