The Collaborative International Dictionary of English v.0.48:

Participate \Par*tic"i*pate\, v. i. [imp. & p. p.
   Participated; p. pr. & vb. n. Participating.]
   To have a share in common with others; to take a part; to
   play a role; to partake; -- followed by in, formerly by of;
   as, to participate in a debate; to participate in a
   discussion. --Shak.
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         So would he participate of their wants.  --Hayward.
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         Mine may come when men
         With angels may participate.             --Milton.
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