Half-lotus position where only one foot is placed on the opposite thigh; 結跏趺坐 is the full lotus.
Etymology
A yojijukugo of Buddhist origin, composed of 結 (bind), 跏 (sit cross-legged), 趺 (foot), and 坐 (sit). The exact historical derivation is uncertain, but the term has been used in Japanese Buddhist texts to describe the full lotus meditation posture.