…through those woods, with dark secrets of pool and cascade; but by the time it reached Lynde’s Hollow it was a quiet, well-conducted little stream, for not even a brook could run past Mrs. Rachel Lynde’s door without due regard for decency and decorum; it probably was conscious that Mrs. Rachel was sitting at her window, keeping a sharp eye on everything that passed, from brooks and children up, and that if she noticed anything odd or out of place she would never rest until she had…
There are no more uses of "decorum" in the book.
Show samples from other sources
All decorum was lost in the classroom.
She insists upon decorum and civility at her meetings.