Original: Probably the most well known difference between the Old Latin and the Vulgate is in the Pater Noster, where the phrase from the Vetus Latina, quotidianum panem, "daily bread", becomes supersubstantialem panem, "supersubstantial bread" in the Vulgate.
Simplified: Probably the best known difference between the Old Latin and the Vulgate is in the Pater Noster, where the phrase from the Vetus Latina, quotidianum panem, "daily bread", becomes supersubstantialem panem, "supersubstantial bread" in the Vulgate.