It strikes me that when we say we’re “signing” a file/commit/etc. (using a key), a “seal” is probably a more appropriate analogy, since someone could steal your key just as someone could steal the seal.
Electronic signatures don't have this property.
Cryptographic signatures don't provide evidence that someone looked at the "document" in transit. For that we use a separate sort of thing called encryption and prevent the problem entirely. The two things work together to provide the equivalent of a sealed envelope or securely folded paper document.
In Japan, Hanko or Inkan:
https://en.wikipedia.org/wiki/Seal_(East_Asia)#Japanese_usag...
Well, the European usage is to call them seals in a European or Near Eastern context. For some reason, exactly the same thing in an Asian context is often called a "chop" in European usage.