The Collaborative International Dictionary of English v.0.48:

Oblique \Ob*lique"\, v. i. [imp. & p. p. Obliqued; p. pr. &
   vb. n. Obliquing.]
   1. To deviate from a perpendicular line; to move in an
      oblique direction.
      [1913 Webster]

            Projecting his person towards it in a line which
            obliqued from the bottom of his spine. --Sir. W.
                                                  Scott.
      [1913 Webster]

   2. (Mil.) To march in a direction oblique to the line of the
      column or platoon; -- formerly accomplished by oblique
      steps, now by direct steps, the men half-facing either to
      the right or left.
      [1913 Webster]