οὐκ ἔστι σιγᾶν αἰσχρόν, ἀλλ' εἰκῆ λαλεῖν → keeping silence is not shameful; speaking at random is (Menander)
αἰθήεις, αἰθίοψ, αἰθός, δαφοινός, ἐνερευθής, ἔμπυρρος