to enure

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
TO ENURE. To take, or have effect or serve to the use, benefit, or advantage 
of a person. The word is often written inure. A release to the tenant for 
life, enures to him in reversion; that is, it has the same effect for him as 
for the tenant for life. A discharge of the principal enures to the benefit 
of the surety. 
    

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