🔼The name Ataroth-addar in the Bible
The name Ataroth-addar occurs only once in the Bible. It's a city in the territory of Ephraim, mentioned in Joshua 18:13. But it's probably the same as the city simply called Ataroth, which is mentioned in Joshua 16:2 and 16:7.
🔼Etymology of the name Ataroth-addar
The name Ataroth-addar obviously consists of two parts. The first part is a plural form of the noun עטרה, meaning crown:
The second part of our name is the same as the name Addar, and is directly derived from the root-verb אדר, meaning to be majestic:
For a meaning of the name Ataroth-addar, Jones' Dictionary of Old Testament Proper Names reads Crowns Of Greatness. NOBSE Study Bible Name List has Crowns Of Addar (and translates the name Addar with Wide, Open Place).