究竟涅槃(jiū jìng niè pán) “the supreme nirvāṇa”
not found at HD. 8.408.; not found at DK. 8.641.;
Ten. 154b2.尔时如来为彼说法：“若于诸法未能悉到，何处彼有究竟涅槃？”(p);
K. 137.9.nirvāṇa~; not found at Z. 85c14; not found at L. 20b24