Strong's #3074: Yhovah shammah (pronounced yeh-ho-vaw' shawm'-maw)
from 3068 and 8033 with directive enclitic; Jehovah (is) thither; Jehovah-Shammah, a symbolic title of Jerusalem:--Jehovah-shammah.
Brown-Driver-Briggs Hebrew Lexicon:
ּׁ
yehôvâh shâmmâh
Jehovah-shammah = "Jehovah is there"
1) a symbolic name for Jerusalem
Part of Speech: noun proper locative
Relation: from H3068 and H8033 with directive enclitic