adv. [f. prec. + -LY2.] In a thievish manner; as a thief; furtively, by stealth.

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c. 1450.  in Aungier, Syon (1840), 265. Any instrumente,… by the whiche sche myghte escape theueschely oute of pryson.

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1628.  Wither, Brit. Rememb., IV. 664. Some, theevishly, purloyned from the sick.

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1708.  Brit. Apollo, No. 64. 2/2. A Woman so thievishly inclined.

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1855.  Singleton, Virgil, I. 128. Fire … thievishly beneath the fatty bark At first concealed, hath on the timber seized.

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