WASHINGTON — Nearly 20 years after Anita Hill accused Clarence Thomas of sexual harassment during his contentious Supreme Court confirmation hearings, Justice Thomas’s wife has called Ms. Hill, seeking an apology.

In a voice mail message left at 7:31 a.m. on Oct. 9, a Saturday, Virginia Thomas asked her husband’s former aide-turned-adversary to make amends. Ms. Hill played the recording, from her voice mail at Brandeis University, for The New York Times.

“Good morning Anita Hill, it’s Ginni Thomas,” it said. “I just wanted to reach across the airwaves and the years and ask you to consider something. I would love you to consider an apology sometime and some full explanation of why you did what you did with my husband.”

Ms. Thomas went on: “So give it some thought. And certainly pray about this and hope that one day you will help us understand why you did what you did. O.K., have a good day.”