Crossword Genius

Cain's crime (10)

Ross

I believe the answer is:

fratricide

'cain's crime' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for fratricide that I've seen before include "The killing of one's brother" , "Cain's crime" , "Murder of a brother" .)

I've seen this clue in The Guardian.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.