Objurgation, n.
Etymology: [L. objurgatio: cf.F.objurgation.]
The act of objurgating; reproof. While the good lady was bestowing this objurgation on Mr.Ben Allen. Dickens. With a strong objurgation of the elbow in his ribs. Landor.
Shades of meaning
Fernald has no entry of its own for objurgation; he lists it under reproof.
He lists it without comment; the entries above explain its neighbors.