The word "embellish" means to make something more attractive or beautiful by adding decorative details or ornaments. In this question, we are asked to choose a word that is nearly the same in meaning to "embellish".

The options given are:

a) Emboss
b) Design
c) Garnish
d) Aristocratic

Out of these options, the word that is nearly the same in meaning to "embellish" is "garnish". Now let's understand why.

**Emboss**:
To emboss means to decorate a surface with raised patterns or designs. While both "embellish" and "emboss" involve adding decorative details, there is a slight difference in the way they are done. "Embellish" refers to enhancing the overall appearance of something, while "emboss" specifically involves creating raised designs on a surface. Therefore, "emboss" is not the best choice as it does not convey the exact same meaning as "embellish".

**Design**:
Design refers to the process of creating or planning something with a specific purpose or intention. While designing may involve adding decorative elements, it is not necessarily synonymous with embellishing. Design can be more focused on the overall structure, functionality, or aesthetics of something, whereas to embellish is to specifically enhance the appearance by adding decorative details. Therefore, "design" is not the best choice as it does not convey the exact same meaning as "embellish".

**Garnish**:
Garnish means to decorate or enhance the appearance of something, often by adding small details or decorations. This closely aligns with the meaning of "embellish". When we garnish something, we are adding decorative elements to make it more visually appealing. Therefore, "garnish" is the best choice as it conveys a similar meaning to "embellish".

**Aristocratic**:
Aristocratic means relating to the aristocracy, which refers to a social class of noble or privileged people. This word does not have the same meaning as "embellish" and is unrelated to the concept of adding decorative details. Therefore, "aristocratic" is not the best choice as it does not convey the same meaning as "embellish".

In conclusion, out of the given options, the word that is nearly the same in meaning to "embellish" is "garnish".