ham-hleypa

u, f. a ‘ham-leaper,’ a witch that travels in hamfarir, Eg. 421, Fas. ii. 80, 390, Gullþ. 64: in mod. usage Icel. say, hann er mesta hamhleypa, he is a great h., works like a giant, of one who does great work in little time; hann er hamhleypa að skrifa, hamhleypa að vinna, etc.