The teacher castigated the student in hopes of helping him correct his mistakes.

castigated 是动词 castigate 的过去式，castigate 来自拉丁语 castigare（惩罚、纠正），意思是"严厉批评或惩罚某人以使其改正错误"。这个词带有正式和严厉的意味，通常用于权威人物对犯错者的训斥。