Casten vs Castes - What's the difference?

As a verb casten

is (archaic|poetic).

(head)

(archaic, poetic)

* 1748 , , L:LXXX:

With No?e up-turn'd, he always made a Shew

As if he ?melt ?ome nau?eous Scent; his Eye

Was cold, and keen, like Bla?t from boreal Snow;

And Taunts he ca?ten forth mo?t bitterly.

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(head)