ἐφ' ὅσον αὐτοῦ ἡ ὑπόστασις τῶν χρόνων ὑπῆρχεν → as long as his store of years lasted
v. ὠβά; also expld. by φάλαγγος τὸ ἔσχατον, καὶ τὸ ἄκρον (i. e. ᾤα), Hsch.