Athwart

prep.
  1. Across; from side to side of.
  2. (Naut.) Across the direction or course of; as, a fleet standing athwart our course.
  3. Athwart hawse ,
    across the stem of another vessel, whether in contact or at a small distance.
    Athwart ships ,
    across the ship from side to side, or in that direction; -- opposed to fore and aft.

adv.
  1. Across, especially in an oblique direction; sidewise; obliquely.
  2. Across the course; so as to thwart; perversely.