stocks > stems
5 When the wroth western wind does reave their locks;
reave > ravage; carry off locks > [locks of hair]
6 And underneath him his courageous steed, 7 The fierce Spumador, trod them down like docks,
Spumador > "Foaming One" (Latin spumo, to foam or froth; cf. Aen. 6.881) docks > {Coarse, floppy weeds of rough ground, Rumex spp.}
8 The fierce Spumador, born of heavenly seed:
seed > offspring
9 Such as Laomedon of Phoebus' race did breed.
Laomedon > (King of Troy and, in some accounts, the father of Ganymede, the beautiful youth carried off by Zeus (Jupiter). In compensation Jupiter gave Laomedon a pair of divine horses, such as those which draw Phoebus's fiery chariot across the sky) Phoebus > (Who, incidentally, having displeased Jupiter, was sentenced for a time to watch Laomedon's flocks on Mount Ida)
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