see PINK sb.1 (Cf. G. schwertboot.)
1614. T. Gentleman, Eng. Way to Wealth, 14. These are Vessels of diuers fashions, and not like vnto the Busses, and they bee called some of them, Sword-pinks, Flat-bottomes, Holland-toads.
1616. Capt. J. Smith, Descr. New Eng., 12. 2 or 3000 Busses, Flat bottomes, Sword pinks.