Origin of moss hag
Examples from the Web for moss hag
A moss-hag is a cut on the hillside, formed by frost and rain; and overhung with moss, heather, and other growths.
Following the sound, he came to a moss-hag, where a group of Covenanters were worshiping God.
He rolled them up, and put them with the saddle and equipment of his dead horse in the safe shelter of a moss-hag.Lochinvar|S. R. Crockett