Terminology of the Low Countries

The Low Countries comprise the coastal Rhine–Meuse–Scheldt delta region in Western Europe, whose definition usually includes the modern countries of Luxembourg, Belgium, the Netherlands and parts of Northern France. Both Belgium and the Netherlands derived their names from earlier names for the region, due to nether meaning "low" and Belgica being the Latinised name for the Low Countries, a nomenclature that became obsolete after Belgium's secession in 1830.

Source: Wikipedia — Terminology of the Low Countries (CC BY-SA 4.0)