DEH-reh-SEH-vitch
Here's a breakdown:
* DEH: The "e" is short, like the "e" in "bed".
* reh: The "e" is pronounced like the "e" in "red".
* SEH: The "e" is short, like the "e" in "bed".
* vitch: This is similar to the "vich" in "vichyssoise" but with a slight emphasis on the "ch".
Let me know if you'd like to hear it pronounced!