When I was writing about the name John I, not surprisingly, came across the name Jonathan. I had always thought that John and Jonathan came from the same root, but apparently they are actually quite different.
Jonathan, according to Wikipedia and BabyNamesWorld means “Gift of God” or “God has Given.” The English name Jonathan comes from the hebrew יְהוֹנָתָן/יוֹנָתָן, (Yonatan or Yəhonatan).
When I did a Google search for Jonathan, the first result for a person was Jonathan Swift, the writer of Gulliver’s Travels, (which I should finish reading).