[Originally a local name for several grape varieties typical of Friuli (chosen by European Union regulators in 2009 as the official name for glera grapes to replace the former designation prosecco and prevent confusion with the regional wine often produced from glera), from Friulian regional glera, gravel (the original Friulian varieties perhaps being so called in reference to the stony gravel soils on which they are grown), variant of Friulian (Udine) glerie, gravel, from Latin glārea, of unknown origin.]