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statvolt

The unit of electric potential and electromotive force in the centimeter-gram-second electrostatic system of units. One statvolt is the potential difference between two points such that the amount of work needed to transport 1 statcoulomb of electric charge from one point to the other is 1 erg, approximately 2.997 925 × 10² volts. Symbol, statV.

Sometimes called an esvolt.¹

1. For example, see page 387 of:
Members of the Physics Staff of the University of Pittsburgh.
An Outline of Atomic Physics. 2nd ed.
New York: John Wiley and Sons, 1937.

sources

For an excellent history of the development of the electric and magnetic units up to 1913, see U. S. Bureau of Standards Circular 60.