thirstily

from WordNet (r) 3.0 (2006)

thirstily
    adv 1: in a thirsty manner; "we drank thirstily from the bottle
           that was passed around"
    2: with eagerness; in an eager manner; "the news was eagerly
       awaited" [syn: {eagerly}, {thirstily}]

from The Collaborative International Dictionary of English v.0.48

Thirstily \Thirst"i*ly\, adv.
   In a thirsty manner.
   [1913 Webster]