From Latin 'frangere' (to break), from PIE *bʰreg- — a doublet of 'break' through Germanic, the same root split by millennia.
The cracking or breaking of a hard object or material, especially a bone.
From Old French 'fracture,' from Latin 'fractūra' (a breaking, a breach), from 'fractus,' past participle of 'frangere' (to break), from PIE *bʰreg- (to break). The PIE root *bʰreg- is one of the most thoroughly attested roots in Indo-European, producing 'break' in English via Germanic, 'fraction' and 'fragment' via Latin, and reflexes in nearly every daughter language. The same root connects broken bones
English 'fracture' and 'break' are doublets from the same PIE root *bʰreg-. 'Break' took the Germanic path (Old English 'brecan'), while 'fracture' traveled through Latin 'frangere.' The same root also gave 'fraction' (a broken number), 'fragment' (a broken piece), 'fragile' (easily broken), and even 'sassafras' — though that