Yes, I did do blind guesses combined with unclear memories, but the word "noble" is not unique to English, if "
Zeus", "dios", "
Odin" (or another one of that mythos' gods) and "deva" mean the same why couldn't "nobyl" be likewise a variant for "noble"? you may say it's wrong, but not that it's nonsense... after all, words have not crossed languages in a single static era of the past but continue to move from language to language and it could be pretty recent... Now, I admit I made a mistake, I'm human and my memory betrayed me... Just don't say it's nonsense with that much of certainty.