/ ˈpednt; NAmE / noun
( disapproving ) a person who is too concerned with small details or rules especially when learning or teaching
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WORD ORIGIN
late 16th cent.: from French pédant , from Italian pedante , perhaps from the first element of Latin paedogogus , from Greek paidagōgos , denoting a slave who accompanied a child to school (from pais , paid- boy + agōgos guide).