Otomi /ˌoʊtəˈmiː/ noun1 •A person belonging to the indigenous Otomi ethnic group of central Mexico.the espies of Tlaxcallan sayde, that none had fought with them but certayne outlawes and knaues called Otomies, who lyued as vagaboundes without a Lorde or other ruler — 1578 formsOtomis