Concise Bible Dictionary:

1. Son of Esau and Adah, and father of Teman (Gen. 36:4-164And Adah bare to Esau Eliphaz; and Bashemath bare Reuel; 5And Aholibamah bare Jeush, and Jaalam, and Korah: these are the sons of Esau, which were born unto him in the land of Canaan. 6And Esau took his wives, and his sons, and his daughters, and all the persons of his house, and his cattle, and all his beasts, and all his substance, which he had got in the land of Canaan; and went into the country from the face of his brother Jacob. 7For their riches were more than that they might dwell together; and the land wherein they were strangers could not bear them because of their cattle. 8Thus dwelt Esau in mount Seir: Esau is Edom. 9And these are the generations of Esau the father of the Edomites in mount Seir: 10These are the names of Esau's sons; Eliphaz the son of Adah the wife of Esau, Reuel the son of Bashemath the wife of Esau. 11And the sons of Eliphaz were Teman, Omar, Zepho, and Gatam, and Kenaz. 12And Timna was concubine to Eliphaz Esau's son; and she bare to Eliphaz Amalek: these were the sons of Adah Esau's wife. 13And these are the sons of Reuel; Nahath, and Zerah, Shammah, and Mizzah: these were the sons of Bashemath Esau's wife. 14And these were the sons of Aholibamah, the daughter of Anah the daughter of Zibeon, Esau's wife: and she bare to Esau Jeush, and Jaalam, and Korah. 15These were dukes of the sons of Esau: the sons of Eliphaz the firstborn son of Esau; duke Teman, duke Omar, duke Zepho, duke Kenaz, 16Duke Korah, duke Gatam, and duke Amalek: these are the dukes that came of Eliphaz in the land of Edom; these were the sons of Adah. (Genesis 36:4‑16); 1 Chron. 1:35-3635The sons of Esau; Eliphaz, Reuel, and Jeush, and Jaalam, and Korah. 36The sons of Eliphaz; Teman, and Omar, Zephi, and Gatam, Kenaz, and Timna, and Amalek. (1 Chronicles 1:35‑36)).
2. Chief of Job’s three friends, a “Temanite,” or descendant of Teman. He and his companions did not understand God, nor His dealings in discipline with a righteous man. His arguments were founded on experience, as Bildad’s were on tradition. They therefore condemned Job as an evil doer, considering that this was proved by what God had brought upon him. God’s wrath was kindled against them, for they had not spoken of Him correctly. They were directed to take seven bullocks and seven rams and offer them as a burnt offering: Job, His servant, should pray for them, and God would accept him (Job 2:1111Now when Job's three friends heard of all this evil that was come upon him, they came every one from his own place; Eliphaz the Temanite, and Bildad the Shuhite, and Zophar the Naamathite: for they had made an appointment together to come to mourn with him and to comfort him. (Job 2:11); Job 4:1; 15:11Then Eliphaz the Temanite answered and said, (Job 4:1)
1Then answered Eliphaz the Temanite, and said, (Job 15:1)
; Job 22:11Then Eliphaz the Temanite answered and said, (Job 22:1); Job 42:7,97And it was so, that after the Lord had spoken these words unto Job, the Lord said to Eliphaz the Temanite, My wrath is kindled against thee, and against thy two friends: for ye have not spoken of me the thing that is right, as my servant Job hath. (Job 42:7)
9So Eliphaz the Temanite and Bildad the Shuhite and Zophar the Naamathite went, and did according as the Lord commanded them: the Lord also accepted Job. (Job 42:9)

Strong’s Dictionary of Hebrew Words:

from 410 and 6337; God of gold; Eliphaz, the name of one of Job's friends, and of a son of Esau
KJV Usage:

Jackson’s Dictionary of Scripture Proper Names:

God of fine gold: my God has refined

Potts’ Bible Proper Names:

The joy of God; God of gold:―name of one of Job’s friends, and of a son of Esau, Gen. 36:4. {Dei exsultatio}