Smith’s Bible Dictionary

Ephraim

(double fruitfulness), the second son of Joseph by his wife Asenath. (B.C. 1715-1708.) The first indication we have of that ascendancy over his elder brother Manasseh which at a later period the tribe of Ephraim so unmistakably possessed is in the blessing of the children by Jacob. (Genesis 48:1) ...

Smith’s Bible Dictionary, William Smith (1863). Public domain, from the CrossWire SWORD module.