From fr.wiktionary.org:
** [en]
*** [étymologie]
Du [la] .
*** [adjectif]
[en-adj] DECOROUS [dɛkəɹəs]
1. Décent , qui convient.
2. * {{ exemple | lang=en
| The company did not seem to be perfectly sure whether it was DECOROUS in such a situation [...]
| source=[Edward Whymper] - _Scrambles amongst the Alps_, 1871, page 4}}
**** [antonymes]
- [indecorous]
**** [dérivés]
- [decorously]
- [decorousness]
*** [prononciation]
- [Sud de l'Angleterre (Royaume-Uni)]