1Finely dressed, adorned, or set out; (formerly also) †well-furnished, well-equipped (obsolete). Now somewhat archaic.
2Of a ship or other vessel: having a good deck or decks.
Mid 16th century; earliest use found in John Palsgrave (d. 1554), teacher and scholar of languages. From well + decked.
Of a ship: having a well-deck.
Late 19th century; earliest use found in Nautical Magazine. From well-deck + -ed.