Sure. He is also known as the Doombringer, and in parts of the Realms is worshipped as Assuran. And "Hoar" is a corruption of "Halor" (pronounced like the name "Hal" plus "oar," with the stress on the "Hal;" his priests still use this full name in secret prayers).#Realmslore
— Ed Greenwood (@TheEdVerse) February 12, 2020
I always assumed it was like the type of frost. It’s spelled and pronounced exactly that way, at any rate.
Halor, huh? I wonder where Ed got that from. There are a couple languages where that’s a word, but not words that make any real sense as a point of inspiration. Presumably it was chosen purely for sound, as many invented names are. Although I have to wonder which form of the name Ed devised first…