Nemedian
/nɪˈmiːdɪən/noun
In Irish mythology: a member of a legendary early colonizing people of Ireland, led by or descended from Nemed of Scythia, who were later driven out by the Fomorians.
Origin
Mid 19th century; earliest use found in William Thackeray (1811–1863), novelist. From Nemed, name of a legendary invader of Ireland + -ian.