With luck from a foreknowledge of fate

As we'll soon be beginning the Oresteia, this post from the splendid Sententiae Antiquae suggests some of the richness of Aeschylus's text:

In a choral ode from Aeschylus’ Agamemnon, we find a folk etymology implied for Helen’s name. Where I have translated “killer”, the Greek has versions of the aorist of αἵρεω (εἶλον) which, without its augment looks like the beginning of Helen’s name (ἑλ-).

 Aeschylus, Agamemnon 684-696

“Whoever pronounced a name
So thoroughly true?
Wasn’t it someone we’d not see
Guiding the tongue with luck
From a foreknowledge of fate?
Who named the spear-bride,
Struggled-over woman
Helen?
For, appropriately,
That ship-killer [hele-nas], man-killer [hel-andros]
City-killer [hele-ptolis], sailed
From her fine-spun, curtains
On the breath of great Zephyr
and many-manned bands
Of shield-bearers followed
The vanished journey struck
By the oars to the banks
Of leafy Simois
For a bloody strife.”

Helen disarms Menelaos

Χο. τίς ποτ’ ὠνόμαξεν ὧδ’
ἐς τὸ πᾶν ἐτητύμως—
μή τις ὅντιν’ οὐχ ὁρῶ-
μεν προνοί-
αισι τοῦ πεπρωμένου
γλῶσσαν ἐν τύχᾳ νέμων; —τὰν
δορίγαμβρον ἀμφινεικῆ
θ’ ῾Ελέναν; ἐπεὶ πρεπόντως
ἑλένας, ἕλανδρος, ἑλέ-
πτολις, ἐκ τῶν ἁβροπήνων
προκαλυμμάτων ἔπλευσε
Ζεφύρου γίγαντος αὔρᾳ,
πολύανδροί
τε φεράσπιδες κυναγοὶ
κατ’ ἴχνος πλατᾶν ἄφαντον
κελσάντων Σιμόεντος
ἀκτὰς ἐπ’ ἀεξιφύλλους
δι’ ἔριν αἱματόεσσαν.

The blog post goes on to cite other suggested etymologies for "Helen."