Intervene

Webster's Dictionary of the English Language

·vt To come between.

II. Intervene ·noun A coming between; intervention; meeting.

III. Intervene ·vi To Interpose; as, to intervene to settle a quarrel.

IV. Intervene ·vi In a suit to which one has not been made a party, to put forward a defense of one's interest in the subject matter.

V. Intervene ·vi To come between, or to be between, persons or things;

— followed by between; as, the Mediterranean intervenes between Europe and Africa.

VI. Intervene ·vi To occur, fall, or come between, points of time, or events; as, an instant intervened between the flash and the report; nothing intervened ( ·i.e., between the intention and the execution) to prevent the undertaking.