adv. [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.