It came from three words. Dynamic,meaning a force.

VOA: special.2010.05.30

But if it doesn't and I'm just a dynamic person that I strive to be every day, I've won,baby."

VOA: standard.2010.03.08

But that kind of dynamic in which the choice is just between regimes and oppositions is a consequence of policies that have to be changed.

VOA: standard.2010.05.19

"We had a much different dynamic of what was going on inside of Vietnam insofar as what was the cost, the human cost of the war."

VOA: standard.2009.09.09

"We are going to see a dynamic, exciting political process that will happen inside Iraq and I think that we will emerge with a government that is made stronger by the negotiating process."

VOA: standard.2010.03.12