Well then, I must be stupid too, cause I say it the exact same way. Strange, the word looks like it's just one syllable, but something inside makes me think otherwise.
This also brings up another question... was the treant just an invention to basically rip-off the ents or does it have its own grounds? I mean, why didn't they just call them ents or include the ents as related to treants? Copyright difficulties? I don't see how, considering the orcs were pulled straight out of LOTR and every fantasy mythos uses them...