Mariticide is the murder of one's spouse, especially the murder of one's husband by his wife.
The term for killing one's husband is "mariticide." It derives from the Latin words "maritus," meaning husband, and "caedere," meaning to kill. Mariticide is not commonly used in everyday language and is primarily found in legal or academic contexts.
The act of killing one's wife is called "mariticide." It is a serious crime and is punishable by law.
Killing of one's husband: Mariticide or viricide Killing of one's wife: Uxoricide
Following is the list of some words containing the suffix cide: avicide, germicide, insecticide, pesticide, fungicide, fratricide, patricide, matricide, sororicide, infanticide, feticide, homicide, regicide, canicide, felicide, mariticide , filicide or prolicide , genocide, femicide, vaticide, amicicide ,uxoricide etc.
You probably mean Fratricide. Fratricide (from the Latin words frater "brother" and cida "killer," or cidum "a killing," both from caedere "to kill, to cut down") is the act of a person killing his or her brother. Related concepts are sororicide (the killing of one's sister), child murder (the killing of an unrelated child), infanticide (the killing of a child under the age of one year), filicide (the killing of one's child), patricide (the killing of one's father), matricide (the killing of one's mother), mariticide (the killing of one's husband) and uxoricide (the killing of one's wife).
Word : Meaning1. Suicide : or Selfcide (Killing of one self)2. Fratricide : Frater means “brother”, cide means “to kill” (Killing of one’s brother)3. Sororicide : Soro means “sister”, cide means “to cut or kill” (Killing of one’s sister)4. Infanticide : Infant means “baby, new born baby” (Killing of an infant)5. Mariticide : Maritus means “married” (Killing of one’s husband)6. Uxoricide : Uxor means “wife” (Killing of one’s wife)7. Parricide : (Killer of one’s close relatives)8. Patricide : (Killer of one’s father)9. Matricide : (Killer of one’s mother)10. parenticide : (Killing one's parent(s)11. Filicide , Prolicide : (Deliberate act of parent, killing of his or her own son or daughter)12. Regicide : (Deliberate Killing of a monarch means (King, Queen, Emperor)13. Genocide : (Killing of a national, ethnic, racial or religious group)14. Homicide : Also called “Manslaughter” (Killing of another human being)Others:15. Amicicide : (Killing of a friend)16. Femicide : (Killing of a woman)17. Vaticide : Killing a prophet or poetWord : Meaning1. Suicide : or Selfcide (Killing of one self)2. Fratricide : Frater means “brother”, cide means “to kill” (Killing of one’s brother)3. Sororicide : Soro means “sister”, cide means “to cut or kill” (Killing of one’s sister)4. Infanticide : Infant means “baby, new born baby” (Killing of an infant)5. Mariticide : Maritus means “married” (Killing of one’s husband)6. Uxoricide : Uxor means “wife” (Killing of one’s wife)7. Parricide : (Killer of one’s close relatives)8. Patricide : (Killer of one’s father)9. Matricide : (Killer of one’s mother)10. parenticide : (Killing one's parent(s)11. Filicide , Prolicide : (Deliberate act of parent, killing of his or her own son or daughter)12. Regicide : (Deliberate Killing of a monarch means (King, Queen, Emperor)13. Genocide : (Killing of a national, ethnic, racial or religious group)14. Homicide : Also called “Manslaughter” (Killing of another human being)Others:15. Amicicide : (Killing of a friend)16. Femicide : (Killing of a woman)17. Vaticide : Killing a prophet or poet