interrupt
verb (used with object)
to cause or make a break in the continuity or uniformity of (a course, process, condition, etc.).
Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He was suddenly conscious that he had been interrupting an E conversation, not once but several times.
From Eight Keys to Eden by Mark Clifton