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- And I know Englishmen of the Colonel's type-even if he had fallen in love with the young lady at first sight, he would have advanced slowly and with decorum, not rushing things.3.9 — Part 3 Chapter 9 — Poirot Propounds Two Solutions (37% in)
decorum = proper manners and conduct
There are no more uses of "decorum" in Murder On The Orient Express.
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