Other forms: rearguards
The rearguard is the troops who protect the back of an army. Fight a rearguard action, the rearguard held, cover the rearguard.
A rearguard action is the standing phrase and means a fight to slow the enemy while the rest withdraw, which is why it also means a doomed defence of a lost position.
1nounrearguardThe troops who protect the back of an army.
“The rearguard held off the enemy while the rest of the army crossed the river.”
rearguard is a force.
Old French rereguarde is rear plus guard.
Old French
rereguarde
Middle French
rieregarde
Anglo-Norman
reregard,reregarde,rereguarde
Middle English
rier garde
English, today
rearguard
Built from
From Middle English rier garde, from Anglo-Norman reregard,reregarde,rereguarde and Middle French rieregarde, from Old French rereguarde (attested in The Song of Roland, 1150), from rere (“after; behind”) + guarde (“guard”). by surface analysis, rear + guard. retrogarde.
Etymology from Wiktionary, CC BY-SA