from
The Collaborative International Dictionary of English v.0.48
Athwart \A*thwart"\, prep. [Pref. a- + thwart.]
1. Across; from side to side of.
[1913 Webster]
Athwart the thicket lone. --Tennyson.
[1913 Webster]
2. (Naut.) Across the direction or course of; as, a fleet
standing athwart our course.
[1913 Webster]
{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}.
[1913 Webster]