From 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. [1913 Webster]
He learned to make long-tagged thread laces. --Macaulay. [1913 Webster]
His courteous host . . . Tags every sentence with some fawning word. --Dryden. [1913 Webster]
2. To join; to fasten; to attach. --Bolingbroke. [1913 Webster]
3. To follow closely after; esp., to follow and touch in the game of tag. See Tag, a play. [1913 Webster]