The prefix "naus" means "ship" or "vessel." It is commonly used in words related to ships or sailing.
ship
You could add the suffix -ship to it to make the word membership.
....umm hopefully you know what a prefix is?.... one word is shipment or shipper
there is no prefix of suffix to the word navigate
-ship
SS is short for Steam Ship and used on civilian ships. NS would be Nuclear Ship and there was at least one civilian nuclear powered vessel. USS is a prefix designation for a military ships that stand for "United States Ship". HMS is a prefix designation for a British ships that stand for "His(Her) Majesty's Ship". Other ship designations you may see are 'MS' which stands for 'Motor Ship' and 'M/V' which stands for 'Motor Vessel'.
HMS stands for His/Her Majesty's Ship, which is a prefix used in the naming of ships in the British Royal Navy. It signifies that the ship is property of the reigning monarch.
I think the word you are looking for is: Star.
In marine terminology, MS is a prefix meaning "motor ship" and the prefix MV means "motor vessel." The two are often used synonymously.
His Majesty's Ship. This prefix is used with all British military ships. Literally, it means "the ship of the King" (when Darwin was onboard the Beagle, George V was in power). Today, however, it stands for Her Majesty's Ship.
Although there are variations between different style guides, they generally agree that ship names should be italicized, but not the prefix (for example, "USS Enterprise").