72%RatingSave Gender Feminine & Masculine Usage English Pronounced Pron. HAHR-lo [key] Meaning & History From a surname which was from a place name which was derived from Old English hær "rock" or here "army", combined with hlaw "hill". See Popularity DetailPopularity Last ranked #97 in 2017 Australia (NSW) Last ranked #288 in 2017 England and Wales Last ranked #390 in 2017 (f) #972 in 1936 (m) United States Categories celebrity babies, earth, landforms, Nintendo characters, place names, surnames, The Legend of Zelda characters Entry added October 30, 2011