In Hebrew: 'Institution'

מוֹסָד

The word Mossad in Hebrew - מוֹסָד- means institution or institute.

Referring to the intelligence agency, we say literally, The Institute - הַמּוֹסָד.

For example, educational institutions are מוֹסְדוֹת חִנּוּכִיִּם(though מוסד is a masculine noun, it takes on a feminine suffix when used in the plural).

מוסד comes from the root י.ס.ד (y.s.d) meaning foundation - an institution has been instituted or founded.

To institute is לְמַסֵּד, an active-intensive פִּעֵל verb.

For example:

In the government (people are) trying to institute a mandatory draft for everyone.