austerely

from WordNet (r) 3.0 (2006)

austerely
    adv 1: in an austere fashion; "the church was austerely simple"

from The Collaborative International Dictionary of English v.0.48

Austerely \Aus*tere"ly\, adv.
   Severely; rigidly; sternly.
   [1913 Webster]

         A doctrine austerely logical.            --Macaulay.
   [1913 Webster]