Tasuki 襷
A cord for tying back kimono sleeves that crosses over the back; in rope, tasuki shibari names ties whose rope crosses the chest or shoulders in a similar way.
A tasuki (襷) is a cord used to tuck up the sleeves of a kimono so they stay out of the way during work. The dictionary Daijisen describes it as crossing in a diagonal X on the back and passing over both shoulders before it is tied. Rope practitioners borrowed the name: Shibari Study explains tasuki shibari as rope that crosses the chest or shoulders, after the kimono cord, and English Wikipedia’s list of Japanese ties includes a tasuki tie under the gloss “kimono string”.