Proper noun
Deianira
(Greek mythology) The third wife of Heracles.
As he lay dying, Nessus plotted revenge, told Deianira to gather up his blood and spilled semen and, if she ever wanted to prevent Heracles from having affairs with other women, she should apply them to his vestments. Source: Internet
However, Nessus is true to the archetype of the mischievous centaur and tries to steal Deianira away while Heracles is still in the water. Source: Internet
Ovid, Metamorphoses, IX l.132-3 Several years later, rumor tells Deianira that she has a rival for the love of Heracles. Source: Internet
Thinking of revenge, Nessus gives Deianira his blood-soaked tunic before he dies, telling her it will "excite the love of her husband". Source: Internet