EIGG or EGG, a rocky islet among the Hebrides, 5 m. SW. of Skye; St. Donnan and 50 monks from Iona were massacred here in 617 by the queen, notwithstanding a remonstrance on the part of the islanders that it would be an irreligious act; here also the Macleods of the 10th century suffocated in a cave 200 of the Macdonalds, including women and children.