ar·go·sy 
(ärgə-sē)
(ärgə-sē)n. pl. ar·go·sies
1. Nautical
a. A large merchant ship.
b. A fleet of ships.
2. A rich source or supply: an argosy of adventure lore.
[Alteration of obsolete ragusye, from Italian ragusea, vessel of Ragusa (Dubrovnik).]