Webster’s Destroys Simpsons Joke

Most everyone remembers this bit from the Simpsons, episode 3F13, Lisa The Iconoclast:

Many of the class is assembled to watch a film, "Young Jebediah
Springfield". The film is cheaply made.  After a "fight" with a "land cow",
Jebediah is asked by a boy how he can hope to achieve such

Jebediah: [on film] A noble spirit embiggens the smallest man.
Edna: Embiggens?  I never heard that word before I moved to
Ms.Hoover: I don't know why.  It's a perfectly cromulent word.

Way to go, Webster’s Dictionary. You’ve totally blown this classic Simpson’s joke. You jerks.