detour
n.
1738, from French détour, from Old French destor "side road, byway; evasion, excuse," from destorner "turn aside," from des- "aside" + tourner "to turn" (see turn, v.).
v.
1836 (intransitive); 1905 (transitive), from detour, n.. Related: Detoured; detouring.
〔李〕[de-;tour] n.弯路，迂回 v.绕道，迂回 ←tour (F tourner)=to turn 转动
〔蒋〕[de-加强意义，tour迂回] 弯路，迂回路，绕道