And Judah took a wife for Er his firstborn, whose name was Tamar. Judah took a wife for Er (waking, watchful) ... whose name was Tamar - i:e., palm tree, meaning probably that she was tall and erect. Er shortened his days by his flagitious practices, being in all likelihood addicted to the abominable vices of Canaan.
Related Commentaries of Genesis 38:6
Genesis 38:6
6 And Judah took a wife for Er his firstborn, whose name was Tamar.