Deianira was a character in Greek mythology, most famously known as one of the wives of Hercules, the legendary hero. Her name is derived from the Greek words 'deinos' meaning terrible or powerful, and 'anir' meaning man, likely reflecting her association with the mighty Hercules. In some versions of the myth, Deianira accidentally causes Hercules' death by giving him a poisoned robe meant to renew his love for her. Despite this tragic end, she is often depicted as a loyal and devoted wife throughout most of their relationship.
"Deianira is quite uncommon as a given name, with only 36 recorded births between 1995 and 2009."