A round loaf of bread, or historically, bread baked in a rounded shape on a hearth.
From 'cob,' meaning rounded or lumpy, combined with 'loaf.' The 'cob' element relates to Old English roots meaning lump or rounded form.
Medieval bakers called round loaves 'cobloaves' because they baked them directly on the hearth without pans—the dough would naturally plump up into a round 'cob' or lump shape.
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