The Collaborative International Dictionary of English v.0.48:

Tag \Tag\, v. t. [imp. & p. p. Tagged; p. pr. & vb. n.
   Tagging.]
   1. To fit with, or as with, a tag or tags.
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            He learned to make long-tagged thread laces.
                                                  --Macaulay.
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            His courteous host . . .
            Tags every sentence with some fawning word.
                                                  --Dryden.
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   2. To join; to fasten; to attach. --Bolingbroke.
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   3. To follow closely after; esp., to follow and touch in the
      game of tag. See Tag, a play.
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