"Due diligence" refers to the process of conducting a thorough and careful investigation or assessment before making a decision or taking action, particularly in business or legal contexts. It involves gathering information, evaluating risks, and ensuring that all relevant factors have been considered to make an informed choice.
The term "due diligence" originates from the Latin word "diligentia," which means "careful attention" or "constant effort." The phrase gained usage in the legal and business fields, especially during the rise of corporate governance practices in the 20th century.