floc·ci·nau·ci·ni·hil·i·pil·i·fi·ca·tion
ˌfläksəˌnôsəˌnīˌhiləˌpiləfiˈkāSHən/
noun
noun: floccinaucinihilipilification
-
the action or habit of estimating something as worthless. (The word is used chiefly as a curiosity.).
Origin
mid 18th century: from Latin flocci, nauci, nihili, pili (words meaning ‘at little value’) + -fication. The Latin elements were listed in a well-known rule of the Latin Grammar used at Eton College, an English public school.