The Collaborative International Dictionary of English v.0.48:

Teamed \Teamed\, a.
   Yoked in, or as in, a team. [Obs.]
   [1913 Webster]

         Let their teamed fishes softly swim.     --Spenser.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

24 Moby Thesaurus words for "teamed":
   affiliate, affiliated, allied, associate, associated, cabalistic,
   confederate, confederated, conspiratorial, corporate, coupled,
   enleagued, federate, federated, in cahoots, in league,
   in partnership, in with, leagued, married, paired, partners with,
   wed, wedded