noun Etymology: Middle French reregarde, from Old French, from rere + garde guard Date: 1659 a military detachment detailed to bring up and protect the rear of a main body or force
REAR GUARD
Meaning of REAR GUARD in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012