Floccinaucinihilipilification : The act or habit of esteeming or describing something as worthless, or making something to be worthless by said means. The OED dates its first use in literature at 1741 in William Shenstone's Works in Prose and Verse: "I loved him for nothing so much as his flocci-nauci-nihili-pili-fication of money".
I took out two links one to Quizilla and the other to some birthday site. They were causing pop ups when you'd visit this site. Yuk - I hate pop ups.