All 6 Uses

reprove
in
The Book of Job
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but what doth your arguing reprove?†
Chpt 6-10 *

reprove = criticize
6:26 Do ye imagine to reprove words, and the speeches of one that is desperate, which are as wind?†
Chpt 6-10
13:10 He will surely reprove you, if ye do secretly accept persons.†
Chpt 11-15
22:4 Will he reprove thee for fear of thee?†
Chpt 21-25
26:11 The pillars of heaven tremble and are astonished at his reproof.†
Chpt 26-30

reproof = criticism
he that reproveth God, let him answer it.†
Chpt 36-42

reproveth = criticisms

standard suffix: Today, the suffix "-th" is replaced by "-s", so that where they said "She reproveth" in older English, today we say "She reproves."

Definitions:

(1) (reprove)
express disapproval or criticism -- typically in a mild manner & sometimes even in a friendly manner
(2) (meaning too rare to warrant focus)
More rarely (though often from Shakespeare), the form reproof describes punishment rather than merely criticism.