Following a chat discussion, I want to know if we have any written record or general indication of how Latin was spoken by young children.
Most languages that I know have several distinct characteristics associated with baby talk: French children will often "faire dodo" instead of "dormir" (sleep), Latin American children often heavily use the diminutive ("¡Hay un conejito aquicito!"). Usually, sentence structure is simplified.
Are there any works that preserve what this speech might have been like? I'm mostly interested in classical times, but later evidence would certainly be welcome as well.