Answer:
To judge incorrectly
Step-by-step explanation:
When we use the prefix "mis" for words, it is usually to show a version of a verb that conveys a meaning of "incorrectness". As misunderstand is not understand well/correctly and mistype is to commit a mistake when typing, misjudging it to judge in a wrong/incorrect way. The definition itself of misjudge is to: "form a wrong opinion or conclusion about."