religiously

from WordNet (r) 3.0 (2006)

religiously
    adv 1: by religion; "religiously inspired art" [syn:
           {religiously}, {sacredly}]
    2: with extreme conscientiousness; "he came religiously every
       morning at 8 o'clock" [syn: {scrupulously},
       {conscientiously}, {religiously}]

from The Collaborative International Dictionary of English v.0.48

Religiously \Re*li"gious*ly\, adv.
   In a religious manner. --Drayton.
   [1913 Webster]