Medea, betrayed, lets loose at the injustice.
Merita contempsit mea qui scelere flammas viderat vinci et mare?
Has he despised my merits—who by treachery had seen flames and sea to be conquered?
Merita mea: my merits
Contempsit: he despised
Qui: who
Scelere: by treachery
Flammas: flames
Viderat: had seen
Vinci: to be conquered
Et mare: and sea