to say nothing of , conj : (idiomatic) An apophasis used to mention another important, usually related, point: not taking into account, not to mention, without considering.
Cibo e viaggi / Food and travel notes by Livio Acerbo
to say nothing of , conj : (idiomatic) An apophasis used to mention another important, usually related, point: not taking into account, not to mention, without considering.