Obviative third person is a grammatical-person clusivity marking that distinguishes a non-salient third-person referent from a more salient third-person referent in a given discourse context. The obviative is sometimes referred to as the "fourth person".

What does obviate mean in a sentence?

: to anticipate and prevent (something, such as a situation) or make (an action) unnecessary The new medical treatment obviates the need for surgery.

Is Obviation a word?

The act of preventing: determent, deterrence, forestallment, preclusion, prevention.