In my interview for RPG Circus and a brief discussion occurred before the show over how to pronounce Wilderlands. My group and I pronounce it Wild-er-land. Many others pronounce it Will-der-lands.
One that we unwittingly mangled for several decades was Myrmidon.
This is how we pronounce the word.
Then Dwayne of Gamer's Closet stumbles over a clip of Achilles addressing his Myrmidons in the movie Troy.
There the work is pronounced
I guess we dropped that middle m and made it rhyme with Paladin.
I hope you find this humorous. Of course your group can pronounce it however you like.