Noah Webster's Dictionary (v. t.) To put into brisk or vigorous action; to move with life and vigor; -- usually with the reciprocal pronoun.

Multi-Version Concordance Bestir (4 Occurrences) 2 Samuel 5:24 And let it be, when thou hearest the sound of a going in the tops of the mulberry trees, that then thou shalt bestir thyself: for then shall the LORD go out before thee, to smite the host of the Philistines. (KJV JPS ASV DBY WBS RSV) Psalms 35:23 Wake up! Rise up to defend me, my God! My Lord, contend for me! (See RSV) Ezekiel 38:14 Therefore, son of man, prophesy, and tell Gog, Thus says the Lord Yahweh: In that day when my people Israel dwells securely, shall you not know it? (See RSV) Joel 3:12 Let the nations bestir themselves, and come up to the valley of Jehoshaphat; for there will I sit to judge all the nations round about. (ASV RSV)