intervenir

verb
  1. To come between disputing people, groups, etc.; intercede; mediate. verb
    The teacher had to intervenir to resolve the conflict between the two students.
    When the debate became heated, the moderator decided to intervenir to maintain order.
  2. To occur or be between two things. verb
    Several events will intervenir before the final decision is made.
    A long silence intervened before she finally spoke.
  3. To interfere with the outcome or course, especially of a condition or process. verb
    The government decided to intervenir in the economic crisis to prevent further decline.
    Medical professionals may need to intervenir to save the patient's life.