Genesis 19:38

38 And the younger, she also bore a son and called his name Benammi; the same is the father of the sons of Ammon unto this day.

Genesis 19:38 In-Context

36 Thus were both the daughters of Lot with child by their father.
37 And the firstborn bore a son and called his name Moab; the same is the father of the Moabites unto this day.
38 And the younger, she also bore a son and called his name Benammi; the same is the father of the sons of Ammon unto this day.
The Jubilee Bible (from the Scriptures of the Reformation), edited by Russell M. Stendal, Copyright © 2000, 2001, 2010