intervene

Intervene is defined as to come between or to happen between two points in time.

(verb)

An example of intervene is to step into the middle of two teens fighting and break them apart.
An example of intervene is for 10 months to fall between an engagement and a wedding.

See intervene in Webster's New World College Dictionary

to come, be, or lie between
to take place between two events, points of time, etc.
to come or be in between as something unnecessary or irrelevant
to come between as an influence, as in order to modify, settle, or hinder some action, argument, etc.
Law to come in as a third party to a suit, to protect one's own interests

Origin: L intervenire < inter-, between + venire, to come

Related Forms:

See intervene in American Heritage Dictionary 4

intransitive verb in·ter·vened, in·ter·ven·ing, in·ter·venes

To come, appear, or lie between two things: You can't see the lake from there because the house intervenes.
To come or occur between two periods or points of time: A year intervened between the two dynasties.
To occur as an extraneous or unplanned circumstance: He would have his degree by now if his laziness hadn't intervened.
a. To involve oneself in a situation so as to alter or hinder an action or development: “Every gardener faces choices about how and how much to intervene in nature's processes” (Dora Galitzki).
b. To interfere, usually through force or threat of force, in the affairs of another nation.
Law To enter into a suit as a third party for one's own interests.