What does the word hauteur mean? (From Fitzgerald's The Great Gatsby)

Disdainful pride; haughtiness; snobbery.

Mrs. Wilson had changed her costume some time before, and was now attired in an elaborate afternoon dress of cream-colored chiffon, which gave out a continual rustle as she swept about the room. With the influence of the dress her personality had also undergone a change. The intense vitality that had been so remarkable in the garage was converted into impressive hauteur.

From Fitzgerald's The Great Gatsby