mariticide

From Latin maritus (“married, husband”) +‎ -cide, from caedere (“to kill”).

mariticide (countable and uncountable, plural mariticides)

1. The act of killing one's spouse, especially the murder of a husband by his wife.
   • 2014 March 20, Alastair Macaulay, “Tales of Legends and Curiosities”, in The New York Times‎^[1], New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from the original on 21 March 2014:

     Katherine Crockett failed to ignite the big solo in which the title character relishes the ax she will use to commit mariticide.

2. (countable) A woman who has killed her husband.

• The more common term for the murder of a wife by her husband is uxoricide.

• (the killing of one’s husband): husbandicide, viricide

• mariticidal

• uxoricide
• mariticide on Wikipedia.Wikipedia