ἔχιδνα
From LSJ
ἡδονὴ μὲν γὰρ ἁπάντων ἀλαζονίστατον → pleasure is the greatest of impostors, pleasure is the most shameless thing of all
English (LSJ)
ἡ, (ἔχις)
A viper, Hdt.3.108, S.Tr.771, Pl.Smp.218a, etc.; prob. of a constrictor snake, Act.Ap.28.3: metaph., of a treacherous wife or friend, A.Ch.249, S.Ant.531; ἱματισμένη ἔ., of woman, Secund.Sent.8; γεννήματα ἐχιδνῶν brood of vipers, term of reproach, in Ev.Matt.3.7. II pr. n. of a monster, Hes.Th.297, S.Tr. 1099.
German (Pape)
[Seite 1126] ἡ, die Natter, Otter (vgl. ἔχις); Aesch. Ch. 988 Suppl. 873, von der Klytämnestra Ch. 247; Soph. u. A.; Plat. Conv. 218 a. Vgl. nom. pr.