(The Emim lived in it before, a people as great and numerous and as tall as the Anakim.
“the Anakim.” Anak was a “Fallen One,” one of the Nephilim, and his descendants were the Anakim. The Emim were also Nephilim, as we see here and in Deuteronomy 2:11.
[For more on the Nephilim, see commentary on Genesis 6:4].