Boyd’s Bible Dictionary:

(God of Bethel). Place where God appeared to Jacob (Gen. 35:7).

Concise Bible Dictionary:

Name given by Jacob to the place of the altar which he built at Beth-el to God who appeared to him when he fled from Esau. Beth-el signifies “House of God,” and on his return to that place he received the revelation of God’s name, Almighty (compare Gen. 32:29), and worshipped the “God of Beth-el, “because there God appeared unto him, when he fled from the face of his brother” (Gen. 35:7).

Strong’s Dictionary of Hebrew Words:

from 410 and 1008; the God of Bethel; El-Bethel, the title given to a consecrated spot by Jacob
KJV Usage:

Jackson’s Dictionary of Scripture Proper Names:

God of God’s house

Potts’ Bible Proper Names:

God, the house of God:―place where God appeared to Jacob [BETHEL], Gen. 35:7. {Deus, Domus Dei}