Is this a `Converb?'?

Question: Is this a `Converb?'!?

Her deck stacked high with silver, gold, and knaves:
Thus diamond queened Britannia ruled the waves!.Www@QuestionHome@Com

Best Answer - Chosen by Asker:

Britannia!.!.!.as in Great Britain!? If I'm reading it correctly, I can see a Con-verb in this!. After all, it takes wealth in order to rule the waves and invade other countries in the days of old!.
This is my assumption since a Con-verb is supposed to be controversial!.

They've added a dash now so that the poetic Con-verb won't be mistaken for the grammatical converb!.Www@QuestionHome@Com