ἔχιδν-α, ἡ,
(ἔχις) viper, [[ 5th c.BC: Herodotus Historicus 3.108, 5th c.BC: Sophocles Tragicus “Trachiniae” 771, 5th-6th c.BC: Plato Philosophus “Symposium” 218a, etc.] Refs 5th c.BC+]; probably of a constrictor snake, [[ NT.Acts.28.3: _metaphorically_, of a treacherous wife or friend, 4th-5th c.BC: Aeschylus Tragicus “Choephori” 249, 5th c.BC: Sophocles Tragicus “Antigone” 531 ] NT+5th c.BC+]; ἱματισμένη ἔ., of woman, [[ 2nd c.AD: Secundus Gnomologus “Sententiae - FPG” 8 ] Refs 2nd c.AD+]; γεννήματα ἐχιδνῶν brood of vipers, term of reproach, in [[ NT.Matt.3.7. ] NT]
__II proper name of a monster, [[ 8th-7th c.BC: Hesiodus Epicus “Theogonia” 297, 5th c.BC: Sophocles Tragicus “Trachiniae” 1099. ] Refs 8th c.BC+]