INTERVENE

intransitive verb (-vened; -vening) see: come Date: 1587 to occur, fall, or come between points of time or events , to enter or appear as an irrelevant or extraneous feature or circumstance , 3. to come in or between by way of hindrance or modification , to interfere with the outcome or course especially of a condition or process (as to prevent harm or improve functioning), to occur or lie between two things, 5. to become a third party to a legal proceeding begun by others for the protection of an alleged interest, to interfere usually by force or threat of force in another nation's internal affairs especially to compel or prevent an action, see: interpose intervention noun interventional adjective