Halo's Etymology According to Lisan Al-Arab

While I heard the woman's name Hala in the past, this time around I decided to look it up, telling my wife that I didn't think it was Arabic. I found it under the root of ha-ya-lam. Ibn Manthur defines it as being a halo and comments that it's either Arabicized Roman or Hebrew. (When the classical Arabs referred to, "Roman" they often meant Roman or Greek, as the Roman Empire was essentially Greek in its later days, especially after Christianity. Sometimes, "Roman" even meant, "European" to the Arabs.) He then goes on to say that it is derived from the Roman word for the light of the sun. This makes sense, as the Ancient Greek sun god was named Helios. However, what's interesting is that no English dictionaries that I've seen derive the etymology of halo from Helios.