How do you all pronounce this word? I will use -ain, rhyming with gain, to signify the long-a sound I mean, though it'll make the syllable division come out wrong. All my life, I have said, mis-SELL-uh-nee, and at least one Brit-speaker I know says it this way also. But I have spoken with two North Americans who say MISSle-ain-ee. What gives?