ἰχθυηρός
From LSJ
οὐκ ἔστι σιγᾶν αἰσχρόν, ἀλλ' εἰκῆ λαλεῖν → keeping silence is not shameful; speaking at random is (Menander)
English (LSJ)
ά, όν, (ἰχθῦς)
A fishy, scaly, i.e. foul, dirty, πινακίσκοι Ar.Pl.814,Fr.532; ἔλαιον Ph. Bel.90.19; ζωμός Luc.Lex.5; οὐκ ἔστιν ἰχθυηρόν nothing of the fish kind, Diph.32.21; ἡ πύλη ἡ ἰ. the fish-gate, LXXNe.3.3:—Subst., ἰχθῠηρά, ἡ, tax on fish, UPZ110.98 (ii B.C.), PFay.42 (a) v 2 (ii A.D.).