sororicide

[ suh-rawr-uh-sahyd, -ror- ]
/ səˈrɔr əˌsaɪd, -ˈrɒr- /

noun

a person who kills his or her sister.
the act of killing one's own sister.

Origin of sororicide

1650–60; < Latin sorōricīda one who kills his sister, -cīdium the act of killing one's sister, equivalent to sorōr- (stem of soror) sister + -cīda, -cīdium -cide

OTHER WORDS FROM sororicide

so·ror·i·cid·al, adjective

British Dictionary definitions for sororicide

sororicide
/ (səˈrɒrɪˌsaɪd) /

noun

the act of killing one's own sister
a person who kills his or her sister

Derived forms of sororicide

sororicidal, adjective

Word Origin for sororicide

C17: from Latin sorōricīda one who murders his sister, from soror sister + caedere to slay