%erotesis%

‖n. [ NL., fr. Gr. &unr_; a questioning, fr. &unr_; to ask. ] (Rhet.) A figure of speech by which a strong affirmation of the contrary, is implied under the form of an earnest interrogation, as in the following lines; - [ 1913 Webster ]

Must I give way and room to your rash choler?
Shall I be frighted when a madman stares? Shak.