of uncertain etymology; much disputed.
Examples from the Web for nephilim
But, the Yahwist describes the Nephilim as “heroes that were of old, warriors of renown,” not as gods or even demi-gods.The Backstory of ‘Noah’ Is Full of Giants, Horny Angels, and a Grieving God|Tim Townsend|March 28, 2014|DAILY BEAST
Their name as given in the old Testament, 'Nephilim' means 'fallen ones.'The Mark of the Beast|Sidney Watson
There are those who dispute the meaning of the noun Nephilim and derive it from Naphal, which signifies "to fall."
Let the rabbis vouch for the correctness of this; it is ridiculous to call them "Nephilim" because others fell.