sternly

from WordNet (r) 3.0 (2006)

sternly
    adv 1: with sternness; in a severe manner; "`No,' she said
           sternly"; "peered severely over her glasses" [syn:
           {sternly}, {severely}]

from The Collaborative International Dictionary of English v.0.48

Sternly \Stern"ly\, adv.
   In a stern manner.
   [1913 Webster]

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