"Accessorize" means to add or wear something extra, such as jewelry, scarves, or other decorative objects, to enhance or complement one's outfit or appearance.
That's why I'm sticking with accessorizing with pops of red and blue this year for my 4th of July outfit! (thechampagneedit.com)
Carrie was also known for accessorizing with brooches — more is more fun in her book — so we piled four brooches on top of each other! (theglitterguide.com)
I did so with a tulle skirt in this post, and I think I Brittany I do it well by accessorizing with edgy heels and a moto jacket. (lisaalamode.com)