sororate
noun
so·ro·rate sə-ˈrȯr-ət 
: the marriage of one man to two or more sisters usually successively and after the first wife has been found to be barren or after her death
Word History
Etymology
Latin soror
First Known Use
1910, in the meaning defined above
- oyster tree
- oyster wench
- oyster white
- oyster-culturist
- oyster-toad
- oysterage
- oysterbird
- oystercatcher
- oystercatchers
- oystered
- oysterer
- oysterers
- oysterfish
- oystering
- oysterings
- oysterling
- oysterman
- oystermen
- oysters
- oysters rocke
- oysters Rockefeller
- oysterseed
- oystershell
- oystershell bark louse
- oystershell scale