mellon · noun1
An arbitrary formation. Compare -one.
Mellon · proper noun2
* As a Northern Irish surname, from Ó Mealláin (“descendant of Meallán”), a name formed from a diminutive of meall (“pleasant”). * As an English surname, of Norman origin, from Meulan in Seine-et-Oise. * As a Dutch surname, named after a place name Millun bij Keulen.
Etymology from Wiktionary, CC BY-SA 4.0.