What is a percedent?

Answer 1

If you mean "precedent", it means "that which has gone before". A precedent is the way a similar situation was handled on a previous occasion. It can be used as an example and guide to how you deal with the situation before you. For example, your car is dirty and you want to wash it. You remember that your dad always washed the car with a pail of soapy water and an old shirt. As a result you go looking for a shirt you can use to wash the car. That's using precedent.

Answer 2

An example that is used to justify similar occurences at a later time