Fratricide

Fratricide is the act of a person killing his or her brother or sister. The word fratricide derives from the Latin word frater (Latin for "brother").

Compare with child murder (the killing of an unrelated child), infanticide (systematic killings of a large number of children), filicide (the killing of a child by his or her parent), and patricide (the killing of a parent by his or her child).

The word is also used in a military context to refer to friendly fire indcidents.

Fratricides in fiction

• Medea killed her brother Apsyrtus (Greek myth)

Michael Corleone (in The Godfather, Part II) has his brother Fredo shot.