Source : Webster's Revised Unabridged Dictionary (1913)

Overthwart \O"ver*thwart"\ ([=o]"v[~e]r*thw[add]rt"), a.
   1. Having a transverse position; placed or situated across;
      hence, opposite. ``Our overthwart neighbors.'' --Dryden.

   2. Crossing in kind or disposition; perverse; adverse;
      opposing. ``Overthwart humor.'' --Clarendon.

Overthwart \O"ver*thwart"\, adv.
   Across; crosswise; transversely. ``Y'clenched overthwart and
   endelong.'' --Chaucer.

Overthwart \O"ver*thwart"\, prep.
   Across; from alde to side of. ``Huge trees overthwart one
   another.'' --Milton.

Overthwart \O"ver*thwart`\, n.
   That which is overthwart; an adverse circumstance;
   opposition. [Obs.] --Surrey.

Overthwart \O`ver*thwart"\, v. t.
   To cross; to oppose. [Obs.]