My Suggestions

yacio

pron. · class class mĩ- III (plural)

  1. theirs, of them. Theirs; of them. Possessive pronoun referring to items or things belonging to a third-person plural referent (noun class i- or mi-).

Example: Magĩtuĩka a gũtungatĩra mĩhianano ĩrĩa yacio, (They served their idols); Wee wathecangire njamba ciakuo na mĩcengi yacio cio nyene, (The last two lines of this are obscure in Hebrew and difficult to translate. You pierced his head with your shafts;)