τούτων γάρ ἑκάτερον κοινῷ ὀνόματι προσαγορεύεται ζῷον, καί ὁ λόγος δέ τῆς οὐσίας ὁ αὐτός → and these are univocally so named, inasmuch as not only the name, but also the definition, is the same in both cases (Aristotle, Categoriae 1a8-10)
treachery: P. and V. ἀπιστία, ἡ.
betrayal: P. and V. προδοσία, ἡ (Eur., Helen 1633).
plot to upset the gevernment: P. νεωτερισμός, ὁ.