as a matter of fact, I can explain the reason for all of those seemingly unwarranted(!) search hits. as a web publisher you can put a list of words in your page headers which will show up on web searches; e.g., as a word site publisher you might use "vocabulary, word site, logophile, etc." then on a search for such a word your site would turn up.
now, there are lists of words available that are meant to be spelling lists or whatnot, which have a reasonable approach to exhaustivity. the OneLook spelling/lookup feature uses such a list. a site which just wants to get hits, not caring what folks are searching for at all, will use the whole spelling list as keywords. these hits will usually be at the very bottom of a google hit list, but for rare words that appear almost nowhere else, there you are.
