water-serpent; labour in vain
Ancient Greek word, found 55 times in the texts on Socratos.
Apollonius Rhodius, Argonautica 4.1404: ὕδρης Λερναίης χόλον αἵματι πικρὸν ὀιστῶν
Euripides, Heracleidae 950: ὕδρας λέοντάς τʼ ἐξαπολλύναι λέγων
Euripides, Heracles 152: ὕδραν ἕλειον εἰ διώλεσε κτανὼν
All forms of ὕδρα