The Collaborative International Dictionary of English v.0.48:

airt \airt\ v. i.
   1. to pick one's way.

   Syn: pass, make one's way, work one's way, work
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

airt \airt\ v. t. [Also spelled airth.] [Chiefly Scottish]
   1. to point out the way; to direct or guide.
      [WordNet 1.5]

   2. channel into a new direction

   Syn: redirect
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

airt
    v 1: channel into a new direction; "redirect your attention to
         the danger from the fundamentalists" [syn: redirect,
         airt]