furtively

from WordNet (r) 3.0 (2006)

furtively
    adv 1: in a furtive manner; "the soldiers were furtively
           crawling through the night" [syn: {furtively}, {on the
           sly}]

from The Collaborative International Dictionary of English v.0.48

Furtively \Fur"tive*ly\, adv.
   Stealthily by theft. --Lover.
   [1913 Webster]

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