codriver

co- +‎ driver

codriver (plural codrivers)

1. The navigator in the sport of rally racing, who sits in the front passenger seat and gives directions to the driver.
   • 2007 February 11, Don Sherman, “Medical Regimen Keeps Racers Fresh”, in New York Times‎:

     According to Roberto Moreno, one of Mr. Haywood’s codrivers at Daytona and a veteran of 41 Formula One and 122 Indy car races, “No team takes better care of its drivers than Brumos.”

• divorcer