Source : Webster's Revised Unabridged Dictionary (1913)

Unweary \Un*wea"ry\, v. t. [1st pref. un- + weary.]
   To cause to cease being weary; to refresh. [Obs.] --Dryden.

Source : WordNet®

unweary
     adj : with unreduced energy [syn: {untired}, {unwearied}]