ἰχθύδιον
From LSJ
Δίκαιος ἐὰν ᾖς, πανταχοῦ τῷ τρόπῳ χρήσῃ νόμῳ († λαληθήσῃ) → Si iustus es pro lege tibi mores erunt → Bist du gerecht, ist dein Charakter dir Gesetz (wirst du in aller Munde sein)
English (LSJ)
τό, Dim. of ἰχθύς,
A little fish, freq. in Com. (v. infr.), Chrysipp.Stoic.2.208, PFlor.119.7 (iii A.D.), Jul.Mis.350b, etc. [ῡ, Ar.Fr.387.8, Theopomp.Com.62.3, Anaxil.19, Cratin.Jun.13, POxy. 784 (i B.C.), etc.; but ῠ in dact., AP11.405 (Lucill.), Archestr.Fr. 45.18.]