bhreg- / Indo-European roots
Examples of words with the root bhreg-: anfractuous, bracken, brake, bray, breach, break, breccia, brioche, chamfer, defray, diffraction, fraction, fracture, fragile, fragment, frail, frangible, infrangible, infringe, irrefragable, ossifrage, refract, saxifrage, septifragal, suffragan, suffrage.
▲ Derivatives include breach, fraction, frail1, infringe, suffrage.
a. break from Old English brecan, to break;
b. breach from Old English brēc, a breaking;
c. brash2, breccia from Italian breccia, breccia, rubble, breach in a wall, from Old High German *brehha, from brehhan, to break;
d. bray2 from Old French breier, to break;
e. brioche from Old French brier, dialectal variant of broyer, to knead. a-e all from Germanic *brekan.
a. bracken, brake4 from Middle English brake(n), bracken, probably from a Scandinavian source akin to Old Norse *brakni, undergrowth;
b. brake5 from Middle Low German brake, thicket. Both a and b from Germanic *brak-, bushes (< "that which impedes motion").
3. brake2 from Middle Low German brake, flax brake, from Germanic *brāk-, crushing instruments.
4. Nasalized zero-grade form *bhr̥-n-g-. fractal, fracted, fraction, fractious, fracture, fragile, fragment, frail1, frangible; anfractuous, chamfer, defray, diffraction, infract, infrangible, infringe, irrefrangible, ossifrage, refract, refrain2, refringent, sassafras, saxifrage from Latin frangere, to break.
a. suffragan, suffrage from Latin suffrāgium, the right to vote, from suffrāgārī, to vote for (? < "to use a broken piece of tile as a ballot");
b. irrefragable from Latin refrāgārī, to vote against.
[Pokorny 1. bhreg̑- 165 (but g̑ not on good evidence).]