The Collaborative International Dictionary of English v.0.48:

Frequent \Fre*quent"\, v. t. [imp. & p. p. Frequented; p. pr.
   & vb. n. Frequenting.] [L. frequentare: cf. F.
   fr['e]quenter. See Frequent, a.]
   1. To visit often; to resort to often or habitually; as, to
      frequent a tavern.
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            He frequented the court of Augustus.  --Dryden.
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   2. To make full; to fill. [Obs.]
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            With their sighs the air
            Frequenting, sent from hearts contrite. --Milton.
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