What is a prefix or suffix for principle?

There isn't a commonly used prefix or suffix specifically for the word "principle." However, you can create words related to "principle" using prefixes and suffixes that convey specific meanings. Here are a few examples:

Prefixes:

* Un-: To negate the principle (e.g., unprincipled - lacking moral principles)

* Anti-: Opposing a principle (e.g., anti-capitalist - opposing capitalism)

* Pro-: Supporting a principle (e.g., pro-choice - supporting the right to choose abortion)

Suffixes:

* -al: Relating to a principle (e.g., principal - the head of a school)

* -ism: A system or ideology based on a principle (e.g., capitalism - an economic system based on private ownership)

* -ist: A person who believes in a principle (e.g., feminist - a person who believes in the equality of men and women)

Other combinations:

* Principled: Adhering to principles

* Principle-based: Based on principles

* Principally: Mainly or primarily

The best prefix or suffix to use will depend on the specific meaning you want to convey.