sororate

[sawr-uh-reyt, sohr-]

noun

subsequent or concurrent marriage with a wife's sister.

Origin of sororate

1905–10; < Latin sorōr- (stem of soror) sister + -ate³

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sororate

Historical Examples of sororate

Most marriage was by purchase; the levirate and sororate were common.
California Athabascan Groups
Martin A. Baumhoff

British Dictionary definitions for sororate

sororate

noun

the custom in some societies of a widower marrying his deceased wife's younger sister

Word Origin for sororate

C20: from Latin soror a sister

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