A beverage consisting of the juice of apples roasted over spiced ale. A greatday for this drink was the feast of the apple-gathering, called in Irish la mas ubhal, pronounced “lammas ool,” and corrupted into “lamb’s wool.”
“The pulpe of the rosted apples, in number foure or five … mixed in a wine quart of faire water, laboured together untill it come to be as apples and ale, which wecall lambes wool.”—Johnson’s Gerard, p. 1460.