What is Supercalifragilisticexpialidocious?

The word is a compound word, and said by Richard Lederer in his book Crazy English to be made up of these words: super- “above”, cali- “beauty”, fragilistic- “delicate”, expiali- “to atone”, and -docious “educable”, with all of these parts combined meaning “Atoning for being educable through delicate beauty.”

The Oxford English Dictionary first records the word (with a spelling of “supercaliflawjalisticeexpialadoshus”) in the column titled “A-muse-ings” by Helen Herman in the Syracuse University Daily Orange, dated March 10, 1931. In the column, Herman states that the word “implies all that is grand, great,glorious, splendid, superb, wonderful”.

The word was popularized in the 1964 film Mary Poppins, in which it is used as the title of a song and defined as “something to say when you don’t know what to say”.

The Sherman Brothers, who wrote the Mary Poppins song, have given several conflicting explanations for the word’s origin, in one instance claiming to have coined it themselves, based on their memories of having created double-talk words as children. In another instance, they wrote: When we were little boys in the mid-1930s, we went to a summer camp in the Adirondack Mountains, where we were introduced to a very long word that had been passed down in many variations through many generations of kids…

The word as we first heard it was super-cadja-flawjalisticespealedojus. Dictionary.com meanwhile says it is “used as a nonsense word by children to express approval or to represent the longest word in English.” The word contains 34 letters and 14 syllables.