actually 'dollar' is a Czech word. Comes from the silver (and later Uranium) mining town of Jachimov (Joachimsthal in German) Joachimsthalers - the towns coins - called thalers or tolars in Czech...
I definitely wouldnt want a Canadian dollar permanently tied to the US.
it would mean that we would be tied to US economic policy and give up our own.
ALso Im sure that Canadian importers must be benefitting, a couple of years ago when the Canadian dollar was low, one of my customers who already quite wealthy importing linens and stuff from China complained that whenever the Canadian dollar went down it hurt as all his suppliers required payment in US funds. (do they still?)
the US dollar devaluation is the way an empire taxes the rest of the world - thats why Cheney says 'Reagan proved deficits dont matter anymore'