rearguard
0 antonyms and opposites of rearguard, grouped by meaning.
Noun — The rearmost part of a force, especially a detachment of troops that protect the rear of a retreating force.
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Etymology
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, c. 1150), from rere (“after; behind”) + guarde (“guard”). By surface analysis, rear + guard. Piecewise doublet of retrogarde.
Full origin of rearguard →