[f. TAMPER v.1 + -ER1.] One who tampers; a schemer; a meddler.
1599. Sandys, Europæ Spec. (1632), 88. Yea there are not wanting some temperers among them, that have been talking a long while … of a Generall solemne Conference.
1681. H. More, Exp. Dan., Pref. 93. Unfaithful Tamperers with the Souls of men.
1854. Dickens, Child’s Hist. Eng., xxxii. III. 157. He … was surrounded in the Tower by tamperers and traitors.
1906. Athenæum, 3 Feb., 131/3. Modern tamperers with the ecclesiastical architecture.
