405: decorum Jan 17, 2016
'Decorum' is etiquette, or good manners, and is related to 'decorate' etymologically. 'Decorum' came to English in the mid 16th century usually used in literature to denote suitability of style, ultimately deriving from Latin, 'decorus' meaning ‘seemly.’ Over time 'decorate' moved from meaning ‘to grace or honor’ into what we know today, similar to its meaning from Latin 'decoratus' meaning ‘embellished’.