pendulating

Verb

pendulate (third-person singular simple present pendulates, present participle pendulating, simple past and past participle pendulated)

1. To swing like a pendulum.
   • There is an old trick of suspending a shilling by a thread, and causing it to pendulate within a glass , so as to strike its sides , the thread being held between the finger and thumb .1851 December 20, J.O.N Rutter, John W. Parker, “Maguctoid Currents, their Forces and Directions”, in Literary Gazette and Journal of Belles Lettres, Science, and Art, number 1822, page 897
2. To vacillate between states, especially states of arousal and of relaxation.
   • What's important to realize is that you can pendulate—swing back and forth—between these sensations of expansion and contraction.2012, Peter A. Levine, Healing Trauma

See all 3 meanings of pendulate