hit + woman, based on earlier hitman.
hitwoman (plural hitwomen)
- The female equivalent of a hitman; a female assassin.
2007 March 11, Lola Ogunnaike, “At ‘The Agency,’ It Isn’t Pretty”, in New York Times:
- On the show, the person who does most of the critiquing is Ms. Southwick, the delightfully acerbic hitwoman who has become the character to watch.