belay
verb (used with object)
to fasten (a rope) by winding around a pin or short rod inserted in a holder so that both ends of the rod are clear.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
So they are belaying each other, just moving back and forth for each climber.
From New York Times ● Jan. 14, 2015