Genesis 10:9
7 The sons of Cush were Seba, Havilah, Sabtah, Raamah, and Sabteca. The sons of Raamah were Sheba and Dedan. 8 Cush was the father of Nimrod; he began to be a valiant warrior on the earth. 9 He was a mighty hunter before the Lord. (That is why it is said, “Like Nimrod, a mighty hunter before the Lord.”) 10 The primary regions of his kingdom were Babel, Erech, Akkad, and Calneh in the land of Shinar.
LXX Genesis 10:9
7 And the sons of Chous: Saba and Heuila and Sabatha and Regma and Sabakatha. And the sons of Regma: Saba and Dadan. 8 Now Chous became the father of Nebrod. He was the first on earth to be a giant. 9 He was a giant hunter before the Lord God; therefore they will say, “Like Nebrod a giant hunter before the Lord.” 10 And the beginning of his kingdom came to be Babylon, Orech and Archad and Chalanne in the land of Sennaar.
Notes and References
"... If Nimrod was indeed behind the building of the tower, then there was a further point of interest in the biblical description of him in Genesis 10:6-10. Some interpreters thought that the Bible's calling Nimrod mighty in the phrases 'mighty man' and 'mighty hunter' was intended to suggest something more than mere physical strength: it seemed to be implying something about his size as well. As a matter of fact, the same word, 'mighty' (gibbor), had been used of the offspring of the Nephilim in Genesis 6:4. If the Nephilim were 'giants,' and if the word 'mighty' is used to describe both their offspring and Nimrod, then perhaps indeed this word meant something like 'mighty in size,' gigantic. This was just how the ancient Greek translators rendered these phrases ..."
Kugel, James L. The Bible as it Was (pp. 127-128) Harvard University Press, 1998