decorum
noun /dɪˈkɔːrəm/
/dɪˈkɔːrəm/
[uncountable] (formal)- polite behaviour that is appropriate in a social situation synonym propriety
- He is not known for his sense of decorum.
- The celebrations were carried off with style and decorum.
Word Originmid 16th cent. (as a literary term, denoting suitability of style): from Latin, neuter of the adjective decorus ‘seemly’.