Origin: 1275–1325; Middle English rebuken (v.) < Anglo-French rebuker (Old French rebuchier) to beat back, equivalent to re-re- + bucher to beat, strike < Germanic
early 14c., from Anglo-Fr. rebuker "to repel, beat back," O.Fr. rebuchier, from re- "back" + buschier "to strike, chop wood," from busche (Fr. bûche) "wood," from P.Gmc. *busk- (see bush). The noun is first attested early 15c.