What is engraven?

I'm sorry, but I need more context to generate a response. Engraving refers to the art of carving or cutting a design onto a hard surface like metal, wood, or stone, typically for artistic or decorative purposes. Engraving can also refer to the process of printing or reproducing an image, text or design onto a surface using engraved plates or cylinders to create an embossed effect. However, without any specific context, I cannot provide any additional information about "engraven."