Cite this: eDIL s.v. imgaeth or

n ā, f. violent wind, whirlwind: an tan shéideas iomghaoth an uabhair air, TSh. 9142. sguabadh le hiomghaothaibh, 8232 . is imgaeth foda foscna firinne (? i.e. that only a prolonged and violent attack can shake a case based on truth), O'Curry 627 (< H 3.18, p. 303 ).