The name Amos also means "Burden or Burden-Bearer" because of the great burden of delivering his prophecy from God concerning the sins of the nation as well as their punishment for such sins.

You have a mistake. Amoos is to be full of what you carry, and in Hebrew you write it just the same, but it have nothing to do with the name Amos.

In Greek Amos or most commonly Ammos means sand and in the roman times it meant the area surrounding the sea.