In many European languages, cognates of this name are used as a term for a shrewish woman. In Italian and Portuguese the word is megera, in French it's mégère. I think it's a terrible thing to saddle a child with. [noted -ed]
The other two Erinyes of Greek mythology were Alecto and Tisiphone. The Romans called them the Furiae. The Furiae/Erinyes would mete out justice in whatever way they saw fit, usually killing the wrongdoer, no matter how relatively insignificant his transgression.