χωρίον ἔνθα οὐ προσβατὸν θανάτῳ → a spot where it is not accessible to death, a place where was no point accessible by death, a place where death was forbidden to set foot
pistāna: ae, f., for sagitta,I a plant, arrow-head, Plin. 21, 17, 68, § 111.
