Don’t use game.Workspace, use workspace
Also this is terrible because if Part is not a direct parent of workspace and is in, let’s say, a model, you will need to have a unique name for this model. Therefore preventing you from having, let’s say, multiple zombies with the same name.
I don’t believe any syntax like that exists. I did find 3 variations of a FindFirstAncestor method, which might be able to help you if you know beforehand the name or class of the ancestor to be found.
If you just want to get whatever is X levels up in the hierarchy without caring about its information, you’ll need to make a custom function that does that in Lua.