From BiblePortal Wikipedia

American Tract Society Bible Dictionary [1]

A Levitical city, in Manasseh beyond the Jordan,  Joshua 21:27 . It is also called Ashtaroth,  1 Chronicles 6:71 , and is perhaps a contraction of Beth-Ashtaroth.

Morrish Bible Dictionary [2]

Levitical city in Manasseh, east of Jordan.  Joshua 21:27 . It would appear by comparing  1 Chronicles 6:71 to be the same as Ashtaroth

Holman Bible Dictionary [3]

 Joshua 21:27 1 Chronicles 6:71Ashtaroth

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [4]

(Heb. Beeshterah', בְּעֶשְׁתְּרָה , prob. House Of Astarte; Sept. Βοσορά v. r. Βεεθαρά ; Vulg. Bosra ) , one of the two Levitical cities allotted to the sons of Gershom, out of the tribe of Manasseh beyond Jordan ( Joshua 21:27). In the parallel list ( 1 Chronicles 6:71) it appears to be identical with ASHTAROTH (q.v.). In fact, the name is merely a contracted form of Beth-Ashtaroth, the "temple of Ashtoreth" (Gesenius, Thes. p. 196; comp. 175).