■ verb
1》 come between so as to prevent or alter something.
↘occur as a delay or obstacle to something being done.
↘interrupt verbally.
↘ Law interpose in a lawsuit as a third party.
2》 [usu. as adjective intervening ] occur in time between events.
↘be situated between things.
Derivatives
~r (also intervenor ) noun
intervenient adjective
Origin
C16 (earlier (ME) as intervention ): from L. intervenire , from inter- 'between' + venire 'come'.