Excerpts of the Lexicon Recentis Latinitatis, Rome's new dictionary of Latin neologisms corresponding to modern words and expressions, are available online, though in Italian. Thanks to Emily. Many of the Italian words are borrowed from English, and others are easily recognizable:
baby-sitter: infantáriaFabulous! In related news, check out some chapters from Dag Norberg's A Practical Handbook of Medieval Latin, also available online.
basket-ball: follis canistrique ludus
cow boy: armentárius
discoteca: taberna discothecária
magnetofono: máchina echóica
night-club: taberna nocturna