From over- +‎ judge.

overjudge (third-person singular simple present overjudges, present participle overjudging, simple past and past participle overjudged)

1. (transitive) To judge excessively or too harshly.
   • 1877, Reports of Cases Argued and Determined in the Supreme Court of the State of Vermont:

     It seems incongruous for the plaintiff to claim that the defendant should overjudge him in a matter in which he assumed to judge and to do all that he required or supposed necessary to be done in the premises, and that the defendant should be responsible for the inadequacy of what the plaintiff adjudged and did.

   • 1914, David Josiah Brewer, Crowned Masterpieces of Eloquence Representing the Advance of Civilization:

     The most ordinary temptation of the cultivated mind is to desire to criticize too much, to overjudge, to criticize even that of which he knows nothing.

   • 2014, Blaise A Aguirre, Borderline Personality Disorder in Adolescents, 2nd Edition:

     People with BPD are sometimes too interpersonally sensitive, and they overjudge situations, such as feeling that no one loves them or that people are talking about them.

• underjudge

overjudge (plural overjudges)

1. A supreme or superior judge.
   • 1883, Robert Freke Gould, The history of freemasonry:

     But without importing into the case any extravagant conclusions, no doubt need be entertained that the overjudge at Strassburg wielded an immense influence; although, looking at the whole spirit of the Ordinances before us, it is hardly conceivable that his judicial decisions were promulgated on his own sole and undivided authority.