Hey Siri (British female). 
It could be bye.  
 
She spake plainly for a big hearted killer-  
Darling. And by morning   
 
Reminding me once  
Only her own revels met her halfway in kill value.

Bye when morning blurred, when we got to promise  
An aftermath of special measures, letting her adage cool.  
Is this a document or did I make it up?