Strong's #6929: Qedmah (pronounced kayd'-maw)
from 6923; precedence; Kedemah, a son of Ishmael:--Kedemah.
Brown-Driver-Briggs Hebrew Lexicon:
qêdemâh
Kedemah = "original"
1) the youngest son of Ishmael
Part of Speech: noun proper masculine
Relation: from H6923
Usage:
This word is used 2 times:
Genesis 25:15: "and Tema, Jetur, Naphish, and Kedemah:"
1 Chronicles 1:31: "Jetur, Naphish, and Kedemah. These are the sons of Ishmael."