The Collaborative International Dictionary of English v.0.48:

Port \Port\, v. t. [imp. & p. p. Ported; p. pr. & vb. n.
   Porting.] [F. porter, L. portare to carry. See Port
   demeanor.]
   1. To carry; to bear; to transport. [Obs.]
      [1913 Webster]

            They are easily ported by boat into other shires.
                                                  --Fuller.
      [1913 Webster]

   2. (Mil.) To throw, as a musket, diagonally across the body,
      with the lock in front, the right hand grasping the small
      of the stock, and the barrel sloping upward and crossing
      the point of the left shoulder; as, to port arms.
      [1913 Webster]

            Began to hem him round with ported spears. --Milton.
      [1913 Webster]

   Port arms, a position in the manual of arms, executed as
      above.
      [1913 Webster]

The Free On-line Dictionary of Computing (30 December 2018):

porting

   Translating software to run on a different computer and/or
   operating system.

   (1995-01-06)