underreport

Etymology
.

Verb

 * 1) To report a number falsely, making it smaller than it ought to be, especially to do so intentionally
 * 2) * March 9, 2007, Lara Jordan, Associated Press, Audit Slams FBI Use Of Patriot Act
 * The FBI underreported its use of the USA Patriot Act to force businesses to turn over customer information in suspected terrorism cases, according to a Justice Department audit.
 * 1) As a group, to report something less frequently than it actually occurs
 * Women tend to underreport rape.