I love all the ones I never heard pronounced. You wouldn't believe how many there are and how I've pronounced them wrong over the years because I've never heard them.

reciprocity (I said re-sip-re-okity instead of res-ipros-ity
cadaver (I said Kad-a-vere instead of Ka-dar-ver)
banal (I pronounced it bay-nal instead of b-narl)
Osama (I pronounced it OZ-ma instead of O-sah-ma)

It's amazing to hear them pronounced now I have the CI and know what I've been saying wrong over the years.