Heard as two words: polyp odium

A five syllable name said at speed has to break somewhere, and the ear puts the break after the p, which gives two things that sound like English words. Polyp is a word, and odium is a word. What makes this the best mistake on the site is that the first half is not an accident. Polyp comes from Greek polypous, many-footed, which was the old name for an octopus, and it is built from exactly the same two roots as polypodium: poly for many and pous for foot. Somebody splitting the fern's name in the wrong place has landed on a genuine relative of it. The join is still in the wrong spot. The word divides poly plus podium, many plus little foot, and the p that the ear wants to end the first half with is where the second half begins.

A long name breaking where the ear thinks it hears a gap.