Jehovah-shammah; Jehovahshammah

Concise Bible Dictionary:

Name, signifying “Jehovah is there,” to be given to Jerusalem, when it is brought into full blessing in the millennium (Ezek. 48:35 margin).

Strong’s Dictionary of Hebrew Words:

Number:
3074 (find all occurrences in KJV Bible)
Transliteration:
Yhovah
Phonic:
shammah
Meaning:
from 3068 and 8033 with directive enclitic; Jehovah (is) thither; Jehovah-Shammah, a symbolic title of Jerusalem
KJV Usage:
Jehovah-shammah

Jackson’s Dictionary of Scripture Proper Names:

Jehovah is there