This is very cool. I looked up words that have always tripped me up, including banal, brood, indefatigable, preternatural, conch, niche. Indefatigable, banal, and conch had some conflicting ones but the "correct" one occurred enough times that I got the idea. ("Brood" probably isn't commonly mispronounced, I just got it mixed up early in life and never quite got it sorted it out. :) The results for "niche" are consis…
I can't say if that is the case here, but that is what I would suspect. As a british person I have usually heard it and used it as 'neesh'