The Collaborative International Dictionary of English v.0.48:

Heft \Heft\, v. t. [imp. & p. p. Hefted (Heft, obs.); p. pr.
   & vb. n. Hefting.]
   1. To heave up; to raise aloft.
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            Inflamed with wrath, his raging blade he heft.
                                                  --Spenser.
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   2. To prove or try the weight of by raising. [Colloq.]
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