Theroux claims that lawyer and downstairs neighbor Norman Resnicow — who he’s been in a bitter co-op war with for three years — on four occasions since the coronavirus lockdown has verbally berated his wife Barbara, according to new Manhattan Supreme Court papers.

Resnicow could variously be heard calling her “stupid,” a “f—ing moron,” an “idiot,” and an “irresponsible Trumpist Nazi moron,” the court papers say.

A March 22 fight was prompted over Resnicow’s anger that Barbara didn’t wear a face mask. Resnicow locked her outside of their apartment yelling, “you’re locked out,” the court filings say.

During a May 3 dispute, Resnicow — enraged that Barbara had been outside — screamed, “I’ll break your teeth. No, you sit down in your f—ing seat … you want broken teeth?” the court documents allege.

The loud fights — which Theroux recorded — were so alarming to him that he called 911 three times.

During the May 3 tirade Resnicow said something that was “so degrading to [Barbara’s] person that, rather than repeat it here, [Theroux] respectfully refers the Court to the recording, which speaks for itself,” the court papers say.

Theroux wants the judge to hold Resnicow in contempt for allegedly violating a court order that he not intimidate, threaten or harass any witnesses in the lawsuit — which includes Barbara. Theroux is seeking jail or fines against Resnicow.

“Attorney Resnicow’s violent outbursts not only endanger Mrs. Resnicow’s ability to give honest and unfettered testimony in this action, but has made other Building residents fearful of being targeted by him,” the new court papers say.

In February 2019, Theroux accused Resnicow of yelling at his wife so viciously that he called 911 and three days later Barbara was seen with a black eye.

Theroux sued Resnicow in 2017 accusing him of carrying out a campaign of harassment that began when the “Leftovers” actor — who was living with then-wife Jennifer Aniston — began $1 million renovations on his West Village condo.