懸けん垂すい下か降こう

noun

rappel; abseil

Technical term for descending a rope in climbing, mountaineering, or rescue work.

• 登と山ざん者しゃは懸けん垂すい下か降こうで急きゅうな岩がん壁ぺきを下おりた。

  The climber descended the steep rock face by rappelling.