Search Result for "perdurability": 
Wordnet 3.0

NOUN (1)

1. the property of being extremely durable; 



The Collaborative International Dictionary of English v.0.48:

Perdurability \Per*dur`a*bil"i*ty\, n.
   Durability; lastingness. [Archaic] --Chaucer.
   [1913 Webster]


WordNet (r) 3.0 (2006):

perdurability
    n 1: the property of being extremely durable