If you are asking what the Hebrew word for Jerusalem is, it's Yerushalayim (ירושלי×)
Several town names come from the Hebrew word Shalom. Salem Jerusalem Saleem
The English word Salem derives from the Hebrew word Shalem, another word for Jerusalem and to mean peace.
Hebrew University of Jerusalem in 1918. Hebrew University of Jerusalem in 1918.
The word "capitol" refers to the seat of a government, typically a building. If you loosely apply this term to ancient Israel, the capitol building would be the Ancient Temple that stood in Jerusalem.
There is no country called "Hebrew" - the Hebrew people are Israelis (people who live in Israel). The capital of Israel is Jerusalem.
Jahannum, which is similar to the Hebrew word, Gehinnom which translates to 'the valley of Hinnom' which was said to be a rubbish dump outside of Jerusalem historically.
Salem is known to be a direct derivation from the Hebrew word for peace. It is commonly associated with Jerusalem, but a connection is not quite certain. So, if you want to consider it short for Jerusalem, there isn't an etymological issue currently.
Judaism.
The builders and first inhabitants of Jerusalem spoke Hebrew. Hebrew fell out of use sometime after the 6th Century BCE, and was replaced by Aramaic, which is closely related to Hebrew.
In Hebrew, Jerusalem is pronounced Yerushalayim.
The word Olam in Hebrew means 'world'. It can also mean universe and realm
Jerusalem