Save Gender Feminine Usage Spanish (Latin American), Central American Pronounced Pron. gya-OS-ka(Spanish) ya-OS-ka(Spanish) gya-OH-ka(Nicaraguan Spanish) [key·IPA] Other Forms FormsYahoska, Yaoska, Yahosca, Jahoska, Jaoska, Jahosca, Jaosca, etc. Meaning & History From the name of a river in central Nicaragua, hence the heavy concentration of the name's usage in that country.