There are gods like Wodan, with names uncountable. Each one adding another facet to their legend, an aspect of power for them to wield.
But what of a god with none.
A wretched, creeping thing. So many would mistake it for Death, the way it lurks in the shadows watching us. But we know Death and have given it names. But this god is unknown. Not forgotten because we never knew it. Does it even remember it's purpose anymore? For their are times, when the people who can see such thing, will swear they have seen its hungry eyes alight and a predatory smile on its face. Is it a god from the past, of something we once knew? A divine runt who has stalked the periphery unknown and wanting? Or is it, perhaps, the god of something we are unaware of- something that is yet to come. And the hungry glee that has been seen on its face is a sign that it's time is nigh.
Do not make offering.
Do not worship it.
Do not give it a name.