[牢固]

[牢固](láo gù) “firm, firmness” 

HD. 6.242a(三国志); DK. 7.629d(颜氏家训);

83a21.佛为大王 无漏最胜 堪任坚强 常修(v)

K. 120.2.-.; cf.Krsh. 91; not found at L. 19a5;