hypobole
nounEtymology From Ancient Greek ὑποβολή (hupobolḗ, “a throwing under, a suggesting”), from βάλλω (bállō, “to throw”).
1
Rhetoric A rhetorical figure in which several things are mentioned that seem to make claims against the argument, or in favor of the opposing side, but are then refuted one by one.
2
Rhetoric A deliberate, intentional understatement.