embellishment
n. C / U C1 Advanced US //ɛmˈbɛɫɪʃmənt// UK //ɛmbˈɛlɪʃmənt// em·bel·lish·ment
n. an extra detail or decoration added to something to make it look more attractive. It can also mean adding extra facts to a story to make it more interesting, even if they are not true.
n. an ornamental addition or decorative detail intended to enhance the appearance of an object. In a narrative context, it refers to the addition of extraneous or fictional details to a story.
The dress has a beautiful silver embellishment on the collar.
The architect suggested adding a decorative embellishment to the ceiling to match the existing wallpaper.
While the core facts of the report were accurate, the author's embellishment of the protagonist's personal life led to significant criticism from the historical community.
From embellish + -ment.