Origin of oomph
Examples from the Web for oomph
Any good Baby Boom boy my age can testify that the oomph went out of American family car design in 1963.
All the oomph in the U.S. economy was delivered by the top 10% of households.
About the only remarks that could be elicited from the "little yaller man" were a reluctant "oomph" or "oomph-uh."Americans All|Various