Duellay is used as a family name or surname in England. It is 7 characters long in length.
Surname is the form of the Oyler. May be a dealer in oil, and other articles of the same sort—what is now called an oil-man.
Variant form of Olley. Supposed to be a 'nurse-name' of Oliver.
Duellay is the variation of Doyle. Grandson of Dubhghall meaning "black foreigner"; the swarthy stranger or foreigner; one who came from Oilly, in France.
Family name is a variant of Doyle. One of the commonest of Irish surnames, and presumed to be of Anglo-Norman origin. See D'Oyley - Robert de Oilgi was a tenant-in-chief in many counties, and Wido de O. in county of Oxford. Domesday The former is mentioned in the chartulary of Oseney Abbey as a sworn companion of Roger de Ivery (fratres jurati et per sacramentum conföderati) in assisting at the invasion of England. According to genealogists the ancestors of these persons were lords of Olgii or Oyly in Normandy long before the Conquest. The map of modern Normandy shows no such locality as Oilgi, or Oyly, but there are three places in the neighbourhood of Falaise, called Quilli. It was probably to Quilli-le-Basset in the canton of Falaise, written in the XI. century Oillei (and latinized Olleium) that the family originated
It is found as Doyl and Doil in England, temp. Edward I. Hundred Rolls.