detour
Concise Oxford English Dictionary © 2008 Oxford University Press:
detour/ˈdiːtʊə(r)/
▶noun a roundabout route taken to avoid something or to visit somewhere along the way. ▶verb take a detour.
– origin C18: from Fr. détour ‘change of direction’, from détourner ‘turn away’.
'detour' also found in these Oxford entries:

