I may point out that this idea was only accredited generally during the last years of Pavlicheff’s life, when his next-of-kin were trembling about the succession, when the earlier story was quite forgotten, and when all opportunity for discovering the truth had seemingly passed away.
There are no more uses of "accredit" in the book.
Show samples from other sources
The class was a basic business course, taught by a pair of professors who came in from a nearby accredited college.
Piper Kerman -- Orange Is the New Black
Institut Mont-Haefeli was a school in Switzerland —barely accredited, according to Andy— where only the very dumbest and most disturbed girls went.