What is prefix for fair?

There isn't a specific prefix that directly means "fair" in English. However, there are prefixes related to concepts like fairness, justice, or equality, such as:

* Equ-: Means "equal" or "same" (e.g., equitable, equidistant)

* Just-: Means "fair" or "right" (e.g., justice, justifiable)

* Eq-: Means "equal" (e.g., equality, equivalence)

* I-: Can be used to mean "not" or "un" (e.g., unfair)

So, while there's no single prefix for "fair," you can use prefixes like these to create words related to the concept of fairness.