Several origins for the Kornrumpf surname have been suggested.
The Brechkenmacher's Dictionary indicates that the name was derived
from an occupation. Kornmesser translates as "a weigher
of wheat" and rumpf is a dry measure (middle high
German). This translation was provided by the library staff at
the New York City library to Mrs. Michael Kornrumpf
Dr. E. Kornrumpf suggests that the name was associated with the
profession of miller. The kornrumpf was the wooden funnel
(rumpf) of a mill where the grain (korn) was placed
before being ground by the millstone. The English translation
would be "hopper."
It should be noted that all known descriptions and depictions
of the Kornrumpf coat-of-arms include one or more sheaves of wheat.