六塹(liù qiàn) “the six moats” Cf. 六道(liù dào), 六趣(liù qū);
not found at HD. 2.50.; not found at DK. 2.57.;
72a28.群萌之類 默在六塹 堅住邪見 不可動轉 在於苦惱 處危嶮徑(v)
K. 54.11.gati~ ṣaṭ~; not found at L. 9c2;