姟底(gāi dǐ) “(until) the end of hundreds of billions (of kalpas)”
not found at HD. 4.347.; not found at DK. 3.686.;
83b4.如来之徳如向所喩，复倍无数不可思谊，无能计量劫之姟底(p)
K. 121.4-; L. 19a20.亿(劫);