prep. Across; from alde to side of. “Huge trees overthwart one another.” Milton. [ 1913 Webster ]

v. t. To cross; to oppose. [ Obs. ] [ 1913 Webster ]

n. That which is overthwart; an adverse circumstance; opposition. [ Obs. ] Surrey. [ 1913 Webster ]

a. 1. Having a transverse position; placed or situated across; hence, opposite. “Our overthwart neighbors.” Dryden. [ 1913 Webster ]

2. Crossing in kind or disposition; perverse; adverse; opposing. “Overthwart humor.” Clarendon. [ 1913 Webster ]

adv. Across; crosswise; transversely. “Y'clenched overthwart and endelong.” Chaucer. [ 1913 Webster ]

adv. In an overthwart manner; across; also, perversely. [ Obs. ] Peacham. [ 1913 Webster ]

n. The state of being overthwart; perverseness. [ Obs. ] Lord Herbert. [ 1913 Webster ]