I was looking at this question about the word albeit and it got me thinking... what is the most compound, non-hyphenated, real word in English? Strictly speaking, albeit might not be counted as a compound word because all dropped a letter, however there are other example - for instance nonetheless. Is three sub-words the limit, or can someone think of a compound word that has more sub-words?
(Note, I excluded hyphenated compound words because you can make whole sentences into words if you go that route.)