Artificial intelligent assistant

thievishly

thievishly, adv.
  (ˈθiːvɪʃlɪ)
  [f. prec. + -ly2.]
  In a thievish manner; as a thief; furtively, by stealth.

c 1450 in Aungier Syon (1840) 265 Any instrumente,..by the whiche sche myghte escape theueschely oute of pryson. 1628 Wither Brit. Rememb. iv. 664 Some, theevishly, purloyned from the sick. 1708 Brit. Apollo No. 64. 2/2 A Woman so thievishly inclined. 1855 Singleton Virgil I. 128 Fire..thievishly beneath the fatty bark At first concealed, hath on the timber seized.

Oxford English Dictionary

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