CINDER

noun Etymology: Middle English sinder, from Old English; akin to Old High German sintar dross, slag, Serbian & Croatian sedra calcium carbonate Date: before 12th century the slag from a metal furnace ; dross , 2. ashes, a fragment of ash, 3. a partly burned combustible in which fire is extinct, a hot coal without flame, a partly burned coal capable of further burning without flame, a fragment of lava from an erupting volcano, ~y adjective