Proto-Indo-European root meaning "to break."
It forms all or part of: anfractuous; Brabant; bracken; brake (n.1) "stopping device for a wheel;" brake (n.2) "kind of fern;" brash; breach; break; breccia; breeches; brioche; chamfer; defray; diffraction; fractal; fraction; fractious; fracture; fragile; fragility; fragment; frail; frangible; infraction; infringe; irrefragable; irrefrangible; naufragous; ossifrage; refract; refraction; refrain (n.); refrangible; sassafras; saxifrage; suffragan; suffrage.
It is the hypothetical source of/evidence for its existence is provided by: Sanskrit (giri)-bhraj "breaking-forth (out of the mountains);" Latin frangere "to break (something) in pieces, shatter, fracture;" Lithuanian braškėti "crash, crack;" Old Irish braigim "break wind;" Gothic brikan, Old English brecan "to break."
"piece or fragment of an earthenware pot," mid-14c., from pot (n.1) + Middle English schoord, from Old English sceard "fragment" (see shard). An early form of it was also pot scarth, from Middle English scarth "a pottery fragment" (c. 1400; 12c. in place-names), from Old Norse skarð, apparently a cognate of Old English sceard, though attested only as "notch, mountain pass," but compare Old Swedish scarþer "splinter."