How can the word 'priori' be used?

Question

I am only familiar with 'a priori', such as 'a priori conditions'. Now a friend uses the word as follows:

"the supremacy of nature and the priori and inevitability of death and of history."

I do not know if maybe they mean 'priority', or maybe they mean something esoteric and beyond me.

Answer 1

I believe using 'priori' by itself is incorrect. It should be 'a priori' (meaning prior to). Similarly, using 'posteriori' by itself is incorrect. It should be 'a posteriori' (meaning posterior to).

Here's an excerpt from the wiki link that describes them:

The terms "a priori" and "a posteriori" are used in philosophy to distinguish two different types of knowledge, justification, or argument: 'a priori knowledge' is known independently of experience (conceptual knowledge), and 'a posteriori knowledge' is proven through experience. Thus, they are primarily used as adjectives to modify the noun "knowledge", or taken to be compound nouns that refer to types of knowledge (for example, "a priori knowledge"). However, "a priori" is sometimes used as an adjective to modify other nouns, such as "truth". Additionally, philosophers often modify this use. For example, "apriority" and "aprioricity" are sometimes used as nouns to refer (approximately) to the quality of being a priori."