👉 Nefastus is a Latin word that means "broad" or "wide". It's often used to describe something that is wide and expansive, like the sky, a large space, or an open door. It can also refer to any object that has a broad shape or size, such as a wide opening in a room or a large window frame. In this context, "nefastus" could be used to mean anything that is broad or wide in its definition.