Matthew Poole and continuators on Joshua 15:25

25 And Hazor, Haddattah , and Kerioth, and Hezron, which is Hazor ,

Possibly it should be read as one word, Hazor-haddattah, as there is Hazar-gaddah, v. 27. and Hasar-shual, v. 28. such compounded proper names being usual; and this may seem the more probable, because if Hazor and Haddattah were two different Cities, the conjunction and would have been put between them, as it is generally in the rest.

Or, which also is called Hazor; but to distinguish it from the other Hazor, v. 23. this was called also Hezron.