|Int. Standard Bible Encyclopedia|
di'-fath (diphath): A son of Gomer, son of Japheth, son of Noah (1 Chronicles 1:6), called RIPHATH (which see) in the corresponding genealogy in Genesis 10:3.
Diphath (1 Occurrence)
1 Chronicles 1:6 The sons of Gomer: Ashkenaz, and Diphath, and Togarmah. (WEB JPS ASV BBE DBY NAS RSV)