Obs. rare–1. [Referred by Prof. Skeat (Notes to Piers Plowman) to med.L. bidubium, a bill-hook or bush-hook (which has been conjectured to be of Celtic origin, from Gaulish *vidu wood); others have compared Welsh bidog dagger: but the meaning and derivation are alike uncertain.] ? A weapon of some kind.
1362. Langl., P. Pl., A. XI. 211. A bidowe or a baselard he beriþ be his side.
