There are several ways that people are wrong about açai. For a start, it isn't the name of the berries you eat. Açaí berries aren't like strawberries, they actually come from a small South American tree, and "Açaí" is the name of the tree itself. Now that we're talking about it, we're suddenly craving an açaí smoothie bowl!
Secondly, the accents on the letters make the pronunciation quite tricky. It certainly isn't 'akk-aye', which sounds a lot more like a bad attempt at a Scottish accent. The accents tell us how to say it correctly, but as they're not used in the English language, most people can't follow them. The right way is "ah-sah-ee", and the word somehow packs three syllables into only four letters. It takes longer to say than it does to write.