An Etymological Dictionary of Astronomy and Astrophysics

A rock composed of angular fragments (over two millimeter diameter) of older rocks melded together with a matrix of smaller particles or a mineral cement.

Etymology (EN): From It. breccia “broken (rock),” from a Germanic source akin to O.H.G. brecha “a breaking,” ultimately from PIE *bhreg- “to break,” → fraction.

Etymology (PE): Bereš, loan from Fr.