\Thrid\, a.
Third. [Obs.] --Chaucer.

\Thrid\, v. t. [imp. & p. p. {Thridded}; p. pr. & vb. n.
{Thridding}.] [A variant of thread.]
1. To pass through in the manner of a thread or a needle; to
   make or find a course through; to thread.
         Some thrid the mazy ringlets of her hair. --Pope.
         And now he thrids the bramble bush.   --J. R. Drake.
         I began To thrid the musky-circled mazes.
                                               --Tennyson.
2. To make or effect (a way or course) through something; as,
   to thrid one's way through a wood.

\Thrid\, n.
Thread; continuous line. [Archaic]
      I resume the thrid of my discourse.      --Dryden.