noun
eight-strand braid; single braid
A traditional Japanese braiding technique using eight strands, often for decorative cords. Also referred to as a single braid in some contexts.
この組紐は八つ打ちで作られています。
This braided cord is made with an eight-strand braid.
八つ打ちの技法は、帯締めによく使われる。
The eight-strand braiding technique is often used for obijime cords.
Compound of 八つ (yattsu, 'eight') + 打ち (uchi, 'striking' or 'braiding'), referring to the eight strands used in the braiding process.