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sororicide

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

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

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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
so·ror·i·cid·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for sororicide

sororicide
/ (səˈrɒrɪˌsaɪd) /

noun

the act of killing one's own sister
a person who kills his or her sister
sororicidal, adjective
C17: from Latin sorōricīda one who murders his sister, from soror sister + caedere to slay
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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