Jointress

from The Collaborative International Dictionary of English v.0.48
Jointress \Joint"ress\, n. (Law)
   A woman who has a jointure. [Written also {jointuress}.]
   --Blackstone.
   [1913 Webster]
    
from Bouvier's Law Dictionary, Revised 6th Ed (1856)
JOINTRESS or JOINTURESS. A woman who has an estate settled on her by her 
husband, to hold during her life, if she survive him. Co. Litt. 46. 
    

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