neched Shel david
The Hebrew word for grandson is Neched (נכד)
ben nin
Eisenhower named it Camp David for his grandson David Eisenhower.
If we're discussing biblical figures, then yes. Abraham was the first person referred to as "Hebrew", and Jacob was Abraham's grandson.
Ashkenaz was the first son of Gomer in the Hebrew Bible followed by Riphath and Togarmah. Ashkenaz was a great grandson of Noah through Japheth in the Hebrew Bible.
No, Dwight David Eisenhower II was the grandson of president Eisenhower.
Enos is the grandson of both Adam and Eve. He is also called Enosh in the Hebrew Bible, in the Book of Genesis.
David (דוד) = 14
David used Hebrew. The Arabic language did not yet exist in 1000 BCE.
I am David = shmee dah-VEED (שמי דוד)(it's the same in both Ancient Hebrew and Modern Hebrew, only in Modern Hebrew, the name david is more likely to be stressed on the first syllable).
The name David is of Hebrew origin. The meaning of David is "beloved".
Yes, David Michael Draiman, the American songwriter and the vocalist for the band Disturbed as well as for the band Device, speaks Hebrew.