Out of all of the possibilities you could have chosen to spell that word, you chose what you chose. Wow.
"Uuhhh...hmmm, how do I spell this? Well, I know there's 'phyllo' dough. So it must begin with 'phylo.' Then there's the 'siffy' part, but it's a smart word, so it has to be 'siphy.' Yeah, that's it. Phylosiphy."
PHILOSOPHY.