Fratricide
/ˈfrætrɪˌsaɪd/noun
The killing of one’s brother or sister; also, a person who commits such a killing.
Did you know?The ending -cide comes from Latin caedere, “to kill,” the same murderous root behind suicide, homicide, and regicide.
Etymological Timeline
Latin
Lat
fratricidium
“the killing of a brother”
Latin
Lat
frater
“brother”
Latin
Lat
caedere
“to cut down, strike, kill”
Late Middle English
English
fratricide
“the killing of a brother; a brother-killer”
Modern English
English
fratricide
“the killing of one’s brother or sister; also, a person who commits such a killing”