embellish

adorn, decorate, ornament, embellish, beautify, deck, garnish mean to enhance the appearance of something by adding something unessential.

adorn implies an enhancing by something beautiful in itself.

decorate suggests relieving plainness or monotony by adding beauty of color or design.

ornament and embellish imply the adding of something extraneous, ornament stressing the heightening or setting off of the original,

embellish often stressing the adding of superfluous or adventitious ornament.

beautify adds to embellish a suggestion of counterbalancing plainness or ugliness.

deck implies the addition of something that contributes to gaiety, splendor, or showiness.

garnish suggests decorating with a small final touch and is used especially in referring to the serving of food.