authentically

from WordNet (r) 3.0 (2006)
authentically
    adv 1: genuinely; with authority; "it is authentically British"
           [syn: {authentically}, {genuinely}]
    
from The Collaborative International Dictionary of English v.0.48
Authentically \Au*then"tic*al*ly\, adv.
   In an authentic manner; with the requisite or genuine
   authority.
   [1913 Webster]
    

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