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[dih-kawr-uh m, -kohr-] /dɪˈkɔr əm, -ˈkoʊr-/
dignified propriety of behavior, speech, dress, etc.
the quality or state of being decorous, or exhibiting such dignified propriety; orderliness; regularity.
Usually, decorums. an observance or requirement of polite society.
Origin of decorum
1560-70; < Latin decōrum, noun use of neuter of decōrus decorous
1. politeness, manners, dignity. See etiquette.

dulce et decorum est pro patria mori

[doo l-ke et de-koh-room est proh pah-tree-ah moh-ree; English duhl-see et di-kawr-uh m est proh pey-tree-uh mawr-ahy, mohr-ahy, -kohr-uh m] /ˈdʊl kɛ ɛt dɛˈkoʊ rum ɛst proʊ ˈpɑ triˌɑ ˈmoʊ ri; English ˈdʌl si ɛt dɪˈkɔr əm ɛst proʊ ˈpeɪ tri ə ˈmɔr aɪ, ˈmoʊr aɪ, -ˈkoʊr əm/
sweet and fitting it is to die for one's country. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for decorum
Contemporary Examples
Historical Examples
  • Lady Sarah Lidhurst was precisely as sorry as decorum required.

  • This evening some decorum was observed, there wasn't too much gorging.

  • Such a breach of delicacy and decorum never did I witness before.

    Gomez Arias Joaqun Telesforo de Trueba y Coso
  • His victory made him uneasy, yet he saw no way of abandoning it with decorum.

    The Market-Place Harold Frederic
  • It was then that he lost the decorum and restraint a man keeps up for his own sake.

    Within the Tides Joseph Conrad
British Dictionary definitions for decorum


propriety, esp in behaviour or conduct
a requirement of correct behaviour in polite society
Word Origin
C16: from Latin: propriety
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for decorum

1560s, from Latin decorum "that which is seemly," noun use of neuter of adjective decorus "fit, proper," from decor (see decor).

Online Etymology Dictionary, © 2010 Douglas Harper
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