ὅσον ἀπὸ τοῦ ἱεροῦ ἐφεωρᾶτο τῆς νήσου → as much of the island as was in view from the temple
ἐφέσπερος, -ον (Α)δυτικός.[ΕΤΥΜΟΛ. < επί + ἕσπερος «δυτικός»].