Strong's #1020: Beyth ha-Yshiy-mowth (pronounced bayth hah-yesh-ee-moth')
from 1004 and the plural of 3451 with the article interposed; house of the deserts; Beth-ha- Jeshimoth, a town East of the Jordan:--Beth-jeshimoth.
Brown-Driver-Briggs Hebrew Lexicon:
Beth-jesimoth = "house of the desolation"
1) a place in Moab given to the tribe of Reuben
Part of Speech: noun proper locative
Relation: from H1004 and the plural of H3451 with the article interposed
This word is used 4 times:
Numbers 33:49: "And they pitched by Jordan, from Beth-jesimoth even unto Abel-shittim in the plains"
Joshua 12:3: "sea on the east, the way to Beth-jeshimoth; and from the south, under Ashdoth-pisgah:"
Joshua 13:20: "And Beth-peor, and Ashdoth-pisgah, and Beth-jeshimoth,"
Ezekiel 25:9: "from his cities which are on his frontiers, the glory of the country, Beth-jeshimoth, Baal-meon,"