objurgator
/ɒbdʒɜːrɡeɪtər/Definitions
1. noun
A person who scolds or reprimands severely, often in a formal or official capacity
“The school principal served as an objurgator for the student’s misbehavior.”
2. verb
To scold or reprimand severely, often in a formal or official capacity
“The teacher objurgated the student for not following the rules.”