A people who invaded and inhabited Ireland. They were defeated by the Tuatha Dé Danaan.
[Irish, from Old Irish : fir, plur. of fer, man; see wī-ro- in Indo-European roots + bolg, perhaps genitive plur. of bolg, bag (literally, "men of bags," perhaps from the notion that warriors "swell" with heroic valor in battle ); see bhelgh- in Indo-European roots.]
pishogue, pooka, Young Ireland, Whiteboy, Gaeltacht, 'That beats Banagher, and Banagher beats the Devil', Terry Alt, Firbolg, Garland Sunday, galloglass, Celtic tiger, Brehon law; Giants' Dance; Hy Brasil; Kilkenny Cats, St Patrick's Purgatory, Tir-nan-Og, Famine Queen, Vinegar Hill, wild geese and many more.