Source : Webster's Revised Unabridged Dictionary (1913)

Bestir \Be*stir"\, v. t. [imp. & p. p. {Bestirred}; p. pr. & vb.
   n. {Bestirring}.]
   To put into brisk or vigorous action; to move with life and
   vigor; -- usually with the reciprocal pronoun.

         You have so bestirred your valor.        --Shak.

         Rouse and bestir themselves ere well awake. --Milton.

Source : WordNet®

bestir
     v : become active; "He finally bestirred himself" [syn: {rouse}]
     [also: {bestirring}, {bestirred}]

bestirring
     See {bestir}