mercer — a dealer in textile fabrics; dry-goods merchant.
purser — an officer on a ship who handles financial accounts and various documents relating to the ship and who keeps money and valuables for passengers.
Three-syllable rhymes
precursor — a person or thing that precedes, as in a job, a method, etc.; predecessor.
reverse — opposite or contrary in position, direction, order, or character: an impression reverse to what was intended; in reverse sequence.