The Collaborative International Dictionary
Insusurration
Insusurration \In*su`sur*ra"tion\, n. [L. insusurratio, fr.
insusurrare to whisper into.]
The act of whispering into something. [Obs.]
--Johnson.
Wiktionary
insusurration
n. 1 (context obsolete English) The act of whispering into something 2 Speaking in a whisper about someone.