A more thorough explanation:

Definition: Pactional is an adjective that describes something related to or generating an agreement.

Example: The pactional agreement between the two companies ensured a smooth merger.

Explanation: In this example, the word "pactional" is used to describe the agreement between two companies. The agreement was made to ensure a smooth merger, which is an example of something that is generated by a pactional agreement.

Example: The pactionally agreed upon terms of the contract were beneficial for both parties.

Explanation: In this example, the word "pactionally" is used as an adverb to describe the agreed upon terms of a contract. The terms were beneficial for both parties, which shows how a pactional agreement can be mutually beneficial.