The words – COSMOPOLITE and METROPOLITAN – are used in reference to world travelers and large cities.
COSMOPOLITE is the noun form referring to a person who is COSMOPOLITAN – from the Greek words – COSMOS meaning THE WORLD, and POLIS meaning CITY.
It is pronounced by placing the accent on the middle part of the wor – COS – MOP’ – OLITE.
The word METRO means MOTHER – and POLIS meaning CITY (mother city).
A COSMONAUT is a sailor of the world, whereas an ASTRONAUT is a sailor of the stars.
The word – POLICE – also is derived from the word – POLIS – city; however, the words – TO POLISH and POLITE – come from a Latin verb POLIRE which means to make shine.
There is a connection in these words because generally if you live in a METROPOLIS you are, supposedly, better polished than someone dwelling in a remote hamlet.