I say nye-OH-mee. I think that sounds better when called out. Even though that pronunciation shouldn't make sense to me, like Rox says. I guess it's true... like in what other word it is the letter a said like a long-i? I can't think of one... But something about the nay-o-mee pronunciation feels like I'm putting on airs, like I'm trying to be fancy. Like an American mom insisting their
Clara is CLAW-ra, not CLAIR-uh.