Complex sentence: This name is a local diminutive of the name "George", and Tynesiders are called Geordies because their miners used George Stephenson's safety lamp to prevent firedamp explosions, rather than the Davy lamp that was used elsewhere.
Split into simpler sentences: This name is a local diminutive of the name "George". Tynesiders may have been given this name because their miners used George Stephenson's safety lamp to prevent firedamp explosions, rather than the Davy lamp that was used elsewhere.