I had no idea how to pronounce "anomie" until recently. I once taught a class on Orwell and had the hardest time pronouncing "intelligentsia" the first couple of classes. It was a little embarrassing.
I also find that since moving out of an English speaking country, I'm more prone to making phonetic mistakes while typing. I'm thinking it has to do with constantly hearing a language I barely understand and thinking in terms of sounds rather than words as I write. Either that or senility. I hope it's not senility.