sororate


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sororate:

see marriagemarriage,
socially sanctioned union that reproduces the family. In all societies the choice of partners is generally guided by rules of exogamy (the obligation to marry outside a group); some societies also have rules of endogamy (the obligation to marry within a group).
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Sororate

 

a custom that evolved later than sororal polygyny, whereby a widower marries his deceased wife’s sister. Sororate has long existed in class societies.

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