Abseil:
British
the practice of descending a steep slope by a rope secured from above and coiled around one’s body
The first time I went abseiling it was a weird feeling. [Collins Dictionary]
Noted in “Why the hunt for alien life is under way far beneath Earth’s surface,” Donna Lu, NewScientist (16 November 2019, paywall):
Thanks to the rope-rigging skills of two Italian cavers, we abseil down, slippery with mud, into a long cavern.
