Merchantman
From BiblePortal Wikipedia
Hastings' Dictionary of the Bible [1]
MERCHANTMAN. This Eng. word is now used only of a trading vessel. In AV [Note: Authorized Version.] it means ‘merchant, tradesman’; it occurs in Genesis 37:28 , 1 Kings 10:15 , Matthew 13:46 . In each case the earliest editions of AV [Note: Authorized Version.] have two separate words.
Webster's Dictionary [2]
(1): ( n.) A merchant.
(2): ( n.) A trading vessel; a ship employed in the transportation of goods, as, distinguished from a man-of-war.
King James Dictionary [3]
MER'CHANTMAN, n. A ship or vessel employed in the transportation of goods, as distinguished from a ship of war.