The Collaborative International Dictionary of English v.0.48:

Glad \Glad\, v. t. [imp. & p. p. Gladded; p. pr. & vb. n.
   Gladding.] [AS. gladian. See Glad, a., and cf. Gladden,
   v. t.]
   To make glad; to cheer; to gladden; to exhilarate. --Chaucer.
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         That which gladded all the warrior train. --Dryden.
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         Each drinks the juice that glads the heart of man.
                                                  --Pope.
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