cognominal

from The Collaborative International Dictionary of English v.0.48
Cognominal \Cog*nom"i*nal\, a.
   Of or pertaining to a cognomen; of the nature of a surname.
   [1913 Webster]
    
from The Collaborative International Dictionary of English v.0.48
Cognominal \Cog*nom"i*nal\, n.
   One bearing the same name; a namesake. [Obs.] --Sir T.
   Browne.
   [1913 Webster]
    

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