The terms "Caveat venditor" and "Caveat emptor" represent two different principles related to transactions and the responsibilities of buyers and sellers:

1. Caveat venditor (Let the seller beware): This principle places the responsibility on the seller to ensure that the product or service they are offering is of good quality, accurately described, and free from defects. In a "Caveat venditor" situation, the seller is expected to be transparent and fair in their dealings with customers. This concept emphasizes the seller's duty to provide a product that meets the buyer's expectations and is safe for use.

2. Caveat emptor (Let the buyer beware): This is the older, traditional approach where the responsibility was placed on the buyer. Under "Caveat emptor," it was the buyer's responsibility to be cautious, conduct due diligence, and ensure that the product or service met their needs. Sellers had limited obligations to disclose information or defects, and the burden of making an informed decision fell on the buyer.

In today's free market economies, there has been a shift towards consumer protection and regulations that favor the "Caveat venditor" approach. This means that sellers are expected to provide accurate information, quality products, and a certain level of protection to consumers. Consumer protection laws have evolved to ensure that buyers have rights and remedies when dealing with sellers, shifting the balance away from "Caveat emptor."

So, the reason the term "Caveat venditor" is associated with 'Let the seller beware' is because it reflects the modern approach that places greater responsibility on the seller to be transparent and fair in transactions, with a focus on consumer protection.