Save Gender Masculine & Feminine Usage Mapuche Pronounced Pron. KUL-fi(Mapudungun) kal-FOO(Spanish) [key·IPA] Other Forms FormsKajfv (Raguileo Alphabet), Calfú (Spanish) Meaning & History From Mapudungun kallfü (also kajfv) meaning "blue" (Smeets also lists "purple").