What does Tridentine mean?
The word Tridentine is simply a reference to the fact that the Latin Mass was codified by Pope St. Pius V shortly after the Council of Trent (1545-1563), from which is derived the term Tridentine. Contrary to what some people think, Pope St. Pius V did not issue a new Mass but simply unified the already existing liturgy. His Quo Primum decree not only declared that this Mass was to remain unchanged for all time, but it forbade the introduction of new Mass liturgies.
