Land in Genesis (4)
I believe the answer is:
edom
'land in genesis' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for edom that I've seen before include "Backward manner of existence" , "Kingdom of the Middle East" , "Biblical people" , "In the Bible, the land of the people of Esau" , "Biblical land" .)