"Purísima" means "purest" in Spanish and is most commonly used in Spanish to refer to "La Purísima Concepción" (the Immaculate Conception) of the Virgin Mary (note historical misspelling in English resulting in double "s", or the result of the Holstein pronunciation with use of the "ẝ" being mistaken as ß "ss", or perhaps spelling comes from the local Portuguese influence, where the spelling from "A Puríssima Conceição" would be correct).