adv. Now rare. [f. THWART a. + -LY2.] In a thwart manner.
1. Transversely, crosswise, obliquely. Also fig.
1541. R. Copland, Guydons Quest. Chirurg., D iv b. The seconde bone of the heade in the hyndre parte is enclosed by a commyssure thwartly in maner of a greke lettre called Lampda.
1654. Z. Coke, Logick, 181. Indirect Solution, is when we answer indirectly, and thwartly to the Syllogism proposed.
2. In the way of opposition or contrariety; perversely; crossly.
1554. W. Kethe, in Goodman, Haw Superior Powers, etc. (1558), 235. Sith man then in iudgeinge, so thwartly is bente To satisfie fansie, and not true intente.
1581. Rich, Farewell (Shaks. Soc.), 172. She answerd hymn thawartly.
a. 1646. J. Gregory, Terrestr. Globe, Posthuma (1650), 266. Som few Spanish Geographers reckon the Longitudes quite contrarie, from East to West, but which was thwartly in it self, and, in the proof, inconsiderably don.