Fo·mor·i·an 
(fə-môrē-ən)
(fə-môrē-ən)n.
Mythology
Mythology
A member of a race of demigods who invaded and inhabited Ireland. They were defeated by the Tuatha Dé Danaan.
[From Irish Fomóir, alteration (influenced by mór, big) of Old Irish Fomoire; see mer- in the Appendix of Indo-European roots.]