Everyone has trouble with that one. There's even a joke about it in Finding Nemo. I don't imagine most English-speakers can spell it offhand.

I was listening to a best-selling author's recent audiobook, and the professional voice actress messed this one up. So you're in good company. Really, who can we blame but the Greeks?

I'm having a whole cognitive dissonance moment because I could've sworn it was "anenome". I even studied this in college and have an ecology degree. Likely over the last twenty years I convinced myself that the common incorrect pronunciation is correct, but I immediately looked it up and then tried to rationalize that it was some sort of mandala effect. The simplest answer is that it's confabulation on my part, and I'm wrong.