NASB
"Then she conceived again and bore a son and named him Onan."
— Genesis 38:4, NASB
And it came about at that time, that Judah departed from his brothers and visited a certain Adullamite, whose name was Hirah.
Judah saw there a daughter of a certain Canaanite whose name was Shua; and he took her and went in to her.
So she conceived and bore a son and he named him Er.
Then she conceived again and bore a son and named him Onan.
She bore still another son and named him Shelah; and it was at Chezib that she bore him.
Now Judah took a wife for Er his firstborn, and her name was Tamar.
But Er, Judah's firstborn, was evil in the sight of the LORD, so the LORD took his life.