Entry 1 sense Webster, 1913 Bestir · Be·stir · IPA /bɪˈstɝ/ 01 v. t. To put into brisk or vigorous action; to move with life and vigor; -- usually with the reciprocal pronoun. imp. & p. p. Bestirred; p. pr. & vb. n. Bestirring 1. 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.