Complex sentence: Originally coined by the Dopyera brothers when they formed the Dobro Manufacturing Company, for a time it came in common language to mean any resonator guitar, or specifically one with a particular design of resonator.
Split into simpler sentences: Originally coined by the Dopyera brothers when they formed the Dobro Manufacturing Company. In time it came, in common language, to mean any resonator guitar, or specifically one with a particular design of resonator.