Redshirted

verb

1. To place an athlete in a status wherein the athlete will spend a year not participating in official athletic activities, but will not lose his or her eligibility to participate in following years.

   "The university decided to redshirt the freshman linebacker to give him an extra year to build up his bulk."

2. To take on a status wherein one will spend a year not participating in official athletic activities.
3. To hold a child out of kindergarten for one year in the hope that the child will do better academically and socially.