Definition - When your speech peters out or halts because you are, seemingly, overpowered by emotion.

1. As opposed to anacoluthon, which is a mid-sentence change of logical direction, e.g. "Let's go to the — Look! There's Bob."

Example -
My tongue isn't long enough … to say … how much … I love you ….

Etymology -
It derives from a Greek word that means "to keep silent."

Oxford English Dictionary -
Its first citation is from 1578:
"A figure called Aposiopesis, after the which something not expressed is to be understood."
(Timme Calvin on Gen. 146 )

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