What is the prefix and suffix for homonym?

The word "homonym" doesn't have a prefix and suffix in the traditional sense. It's formed from two Greek words:

* "homo" meaning "same"

* "onyma" meaning "name"

So, "homonym" literally means "same name," referring to words that sound alike but have different meanings and often different spellings (e.g., "to," "too," and "two").