Solved Anybody recognise this, please?

I never leave pots with just compost in.
This overwintered outside with other potted plants.
Then these leaves started to grow.
They are now 10 inches high.
But I haven't got a clue what it is.
I don't suppose any of you experts can identify it for me?
There is no sign of any buds forming yet.

 

Looks like a Hosta.

 

I doubt it, KFF, I used to grow those years ago. These leaves are smaller.

 

I thought perhaps an Arum Lily.

 

I have never grown either Calla or Arum lilies.
But I would be delighted if it turns out to be either of those.