Seaborne (adjective)

1. Carried or transported by sea.
2. Relating to the sea or navigation.

Origin:

From sea and borne.

Examples:

1. The seaborne trade was the main source of income for the island nation.
2. Seaborne invaders threatened the coastal city.
3. The seaborne voyage was long and treacherous.
4. Seaborne cargo was loaded onto the ship.
5. The seaborne attack was unexpected and caught the defenders off guard.