A Westchester superintendent routinely slammed his employees with racist profanity, making life in Greenburgh School District a real “bitch,” workers claim.

That’s Ronald O. Ross favorite slur — according to a federal lawsuit filed last week by the eight staffers.

According to court papers, Ross has used 26 variations on the slur to refer to colleagues and subordinates, including: “White Bitch,” “Whining White Bitch,” “Black Bitch,” “Fat Bitch,” “Old Black Bitch,” “Old Fat Black Bitch,” “Nazi Bitch,” “Russian Bitch,” “Cancer Bitch,” “Jew Bitch,” “Midget Bitch,” “fat drunk bitch,” “False T—y Bitch,” “Fake T—y Bitch,” “Old Black Bitch,” “Old Fat Black Bitch,” “Nosey Jew Bitch,” “Black Bitches,” “Dumb Bitch,” “F—–g White Bitch,” “Fat White D–e Bitch,” “White D–e Bitch,” “Drunken Bitch,” “Deaf White Bitch,” and even “Racist White Bitch” and “Racist Brazilian Bitch.”

Ross, pictured here, has been given “virtually unbridled authority to run the district,” according to court papers, which claim the Greenburgh Board of Education has done nothing to reign in Ross’s racism.

Not every staffer is a “bitch” to Ross, court papers show. Some are: “Aunt Jemima,” “Clarence Thomas,” “White Uncle Tom,” “White Devil,” “sell out,” “crackers,” “trailer trash,” or “Oreo,” according to the Manhattan Federal Court papers, which cataloged at least 42 such offensive comments, including the stream of “bitches.”

Staffers, including the Greenburgh human resources director, a principal, guidance counselors and teachers, say they’ve been “intimidated, degraded, rendered anxious, distracted from their professional duties and responsibilities.”

It’s little consolation that Ross claims to be “bi-racial,” with a black mother and “a white ‘drunk Irishman’ ” for a dad, the employees say.

His insensitivity knows no bounds, the employees charge.

The superintendent allegedly said over an intercom one teacher lost 100 pounds, while another teacher had “found” the pounds.

Ross even wished one co-worker afflicted with cancer to die, according to the lawsuit.

“She’s such a Bitch. She’s so mean. That’s the reason she has cancer,” he allegedly said of assistant superintendent Susan Sciascia.

When one staffer suggested Greenburgh, in northern Westchester, organize an intercultural Thanksgiving luncheon with the nearby Solomon Schecter School, Ross allegedly replied: “I don’t want to do anything with the Jew school.”

He’s also accused of telling female students in their senior year that they were “going to be ‘roofied’ and raped” in college.

Despite complaints to the district’s school board, nothing was done to punish Ross, the employees charge.

The district could not immediately be reached for comment.

When asked about the lawsuit, Ross said, “I don’t know anything about it.”