mara
n//ˈmɑːɹə//mara
(European folklore) A nightmare; a spectre or wraith-like creature in Germanic and particularly Scandinavian folklore; a female demon who torments people in sleep by crouching on their chests or stomachs, or by causing terrifying visions.
Any caviid rodent of the genus Dolichotis, common in the Patagonian steppes of Argentina.