From the Old French form of the Greek name Eugenios (from
eugenēs ‘well-born, noble’). This name was borne by various
early saints, notably a 5th-century bishop of Carthage, a 7th-
century bishop of Toledo, and four popes. It is sometimes used
as an Anglicized form of Irish Eóghan and has also been used as
an Anglicized form of the Irish name Aodh. English: from the Old
English personal name Tāta, possibly a short form of various
compound names with the obscure first element tāt, or else a
nursery formation. This surname is common and widespread in
Britain; the chief area of concentration is northeastern
England, followed by northern Ireland.