Definition - A figure of speech where you bring up a subject by denying that you're bringing it up.

Example -
She's extremely intelligent, not to mention beautiful.

Etymology -
The word means "passing by omission" in Greek.

Oxford English Dictionary -
Its first citation is from 1842:
"Paraleipsis, in Rhetoric, the artificially exhibited omission or slight mention of some important point, in order to impress the hearers with indignation, pity, etc."
(Brande Dict. Sci., etc.)

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