From the Latin “intervenire,” meaning “to come between,” the verb intervene means just that: to get involved, to jump in the middle of something, to interfere.
The verb intervene was first recorded around 1600. Since then there haven’t been many interventions in its meaning or usage. You should probably intervene in a heated verbal fight between two of your friends before it escalates and gets physical. Especially if they’re debating the United States’ habit of intervening in international conflicts.
be placed or located between other things or extend between spaces and events
occur between other events or between certain points of time
get involved, so as to alter or hinder an action, or through force or threat of force“Why did the U.S. not
intervene earlier in WW II?”