ἐφ' ὅσον αὐτοῦ ἡ ὑπόστασις τῶν χρόνων ὑπῆρχεν → as long as his store of years lasted
P. ἄλυτος (Plato), ἀδιάλυτος (Plato), V. ἄρρηκτος, δύσλυτος, δυσεξήνυστος.