Arlo

Arlo is Spanish, English/German & Italian in origin. In Spanish, it's a nature name that means evergreen barberry tree, adaptable and hardy. In Anglo-Saxon and Germanic origin, it is a derivative of "Harlow" which means "fortified hill". In Italy, Arlo is similar to "Carlo", and can be a nickname for such, which is the Italian variant of Charles.

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The sound of this name makes me think of someone who has a mellow personality and is artsy and down-to-earth.

I've read that the origin is the surname Harlow. http://en.wikipedia.org/wiki/Arlo