ˌapəˌsīəˈpēsə̇s noun
( plural aposiope·ses -ēˌsēz)
Etymology: Late Latin, from Greek aposiōpēsis, from aposiōpan to be quite silent, from apo- + siōpan to be silent, from siōpē silence
: the leaving of a thought explicitly incomplete in writing or speaking often by a sudden breaking off and shifting of grammatical construction for rhetorical purposes (as his behavior was — but I blush to mention that ) or by the use of etc.
• ap·o·si·o·pet·ic |apəˌsīə|ped.ik adjective