A speaker giving the public talk said that the word, "fellow" came from the root word for Nephilim which means "to cause to fall". He says the Nephilim caused others to fall, and so they were called "fellers" and so we get the word "fellow".
That's funny, because there was a really strange brother in our circuit who would take offense to being called "fella", and it was for just that reason. He would reply, in all seriousness: "I am not a Nephilim, and do not wish to be referred to as such".