Αἶκοι

From LSJ

οὐκ ἔστιν οὐδείς, οὐδ' ὁ Μυσῶν ἔσχατος → there is nobody, not even the last of the Mysians | there is nobody, not even the meanest of mankind

Source

Spanish (DGE)

-ων, οἱ ecuos pueblo de Italia, Str.5.3.2. v. Αἴκουοι.