Let me tell you a story.
About 7 or 8 years ago I called an online shop to place an order. I enquired about St. Expedite and pronounced his name right. The employee smirked and chuckled and proceeded to teach me the proper way to pronounce his name. Problem is she didn't know what she was talking about.
St. Expedite is not pronounced, "St. Ex-puh-dye-t". It's not pronounced the same as the word "expedite", as in, "Please expedite the package to Hong Kong". Instead, the proper pronunciation is St. Ex-pih-deet or Ex-pih-deet-us.
In fact, if you look at the Hyatt material you will see him referred to as, "St. Espedee" or a similar pronunciation which is just a corruption of the proper pronunciation.
Just thought I would share this since I know that a lot of people online don't know how to pronounce his name. Even professional workers get it wrong.