tabard Syllabification: (tab·ard)Pronunciation: /ˈtabərd/Definition of tabard noun a sleeveless jerkin consisting only of front and back pieces with a hole for the head. historical a coarse sleeveless garment worn as the outer dress of medieval peasants and clerics, or worn as a surcoat over armor. a herald’s official coat emblazoned with the arms of the sovereign. Origin: Middle English: from Old French tabart, of unknown origintabard in other Oxford dictionaries Definition of tabard in the British & World English dictionary