oneris ferendi

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
ONERIS FERENDI, civil law. The name of a servitude by which the wall or 
pillar of one house is bound to sustain the weight of the buildings of the 
neighbor. 
     2. The owner of the servient building is bound to repair and keep it 
sufficiently strong for the weight it has to bear. Dig. 8, 2, 23; 2 Bouv. 
Inst. n. 1627. 
    

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