int. Obs. rare. [a. AF. *ware derere (ware = mod.F. gare, look out; derere = mod.F. derrière behind).] ? Look out behind!
c. 1386. Chaucer, Reeves T., 181. Thise sely clerkes rennen vp and doun With keepe, keepe, stand, stand, Iossa, warderere [v.rr. ware þe rere, ware derere].