Judeo-Italian. A tiny number speak it fluently; perhaps 4,000 occasionally use elements of it in their speech (1/10th of Italy's 40,000 Jews). Linguistic affiliation: Indo-European, Italic, Romance, Italo-Western, Italo-Romance. More commonly spoken two generations ago. Used in Passover song. Jewish. Nearly extinct.I don't think anyone in the small (around 300-400) Naples Jewish community speaks it, but I'll have to ask Aldo, a friend of ours. He is in his 90's and a few years ago became the second oldest university graduate in the history of the Italian state. He was a young man when the Fascists were in power and, because he was a Jew, was denied entrance to a university. He bided his time and years later, at the age of 80, wrote his university dissertation on The Influence of Napoleon on the Liberation of European Jewry. He says he had difficulty even finding a so-called "graduate advisor" for his thesis; that is, some professor who knew enough about the subject to judge what he wrote. They did a short spot on him on national television, where they showed him getting his degree. He sported an elegant blue suit and an enormous smile.