Where does “-ó” come from?

-ó (Spanish) comes from Latin Aramaicus, from Ancient Greek Ἀραμαϊκός, from Aramaic ܐܪܡܝܐ, from Aramaic ארמיא, from Aramaic ארם — Aram (son of Shem).

-ó (Spanish): A suffix indicating the third-person singular...