- the act of killing one's own brother or sister
- the act of killing relatives or fellow-countrymen, as in a civil war
Origin of fratricideME < OFr < L fratricida a person who kills his or her own brother or sister
Origin of fratricideFrench from Ecclesiastical Late Latin fratricidium from Classical Latin fratricida, one who kills a brother from frater, brother + caedere, to kill (see -cide)
- a. The killing of one's brother or sister.b. One who has killed one's brother or sister.
- The accidental killing of an ally caused by a discharge of a military weapon.
Origin of fratricideMiddle English from Old French from Latin frātricīdium frātricīda frāter frātr- brother ; see bhrāter- in Indo-European roots. -cīdium -cīda -cide