You simply cannot reborn nomi monsters, the only way to summon them is as per the text on the card.
But if for example you were to successfully summon a Chaos Sorceror (think this is what you meant to ask), which is not a nomi, while another which had not been successfully summoned was in the graveyard, you still could not reborn/special summon the one in the graveyard without somehow first sending it back to your hand and then summoning it as it says on the card itself (remove a light and a dark monster from your graveyard).
Once the initial summoning requirement for the Chaos Sorceror has been fullfilled and it has been sent to the graveyard (without being sent back to the hand first and never correctly resummoned) then you can reborn it, this is why it is not a nomi monster.