'Debris' is French for 'broken down' — from 'briser' (to break), probably Celtic in origin.
Scattered pieces of waste or remains; wreckage.
From French 'débris' (remains, fragments, wreckage, scattered pieces), from Old French 'debriser' (to break to pieces, to smash), a compound of 'dé-' (down, apart, intensive — from Latin 'dis-') + 'briser' (to break, to shatter). 'Briser' derives from Late Latin 'brīsāre' or from Celtic *briss- (to break), the latter suggested by cognates in Welsh 'briw' (wound, fracture, break) and Breton 'breza' (to break). The word retains