debris

noun

1. the remains of anything broken down or destroyed; ruins; rubble: the debris of buildings after an air raid.
2. Geology. an accumulation of loose fragments of rock.

noun

1. fragments or remnants of something destroyed or broken; rubble
2. a collection of loose material derived from rocks, or an accumulation of animal or vegetable matter

n.

1708, from French débris “remains, waste, rubbish” (16c.), from obsolete debriser “break down, crush,” from Old French de- (see de-) + briser “to break,” from Late Latin brisare, possibly of Gaulish origin (cf. Old Irish brissim “I break”).