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Dictionary Language resources

fratricide

Syllabification: (frat·ri·cide)

Pronunciation: /ˈfratrəˌsīd/

Definition of fratricide

noun

the killing of one’s brother or sister.
a person who kills their brother or sister.
the accidental killing of one’s own forces in war.

Origin:

late 15th century (denoting a person who kills their brother or sister, derived from Latin fratricida): the primary current sense comes via French from late Latin fratricidium, from frater 'brother' + -cidium (see -cide)