A more thorough explanation:

Definition: Feasance (fee-zuhns) is the act of doing or fulfilling an obligation or condition.

Examples:

• Signing a contract is an act of feasance.
• Completing a project on time is an example of feasance.
• Performing a surgery successfully is an act of feasance.

The examples illustrate that feasance refers to the act of fulfilling a duty or obligation. In each example, there is a task or responsibility that needs to be completed, and the act of completing it is an act of feasance.