Ernst is a common German name that can be used for both males and females, though it is predominantly male. The name has roots in the Old High German word "ernust," which means "seriousness" or "vigor." It has been used in various cultures and languages, often associated with qualities like determination and reliability. In addition to being a name, Ernst is also associated with notable figures, such as Ernst Mach, an influential physicist and philosopher known for his work in the fields of mechanics and optics. The name appears in various contexts, including literature and art, reflecting its cultural significance.