Hanseatic (adj.)

1610s, from Hanseatic League, medieval confederation of North German towns for the protection of commerce, from Medieval Latin Hanseaticus, from Middle Low German hanse "fellowship, merchants' guild" (see Hanse). Its origin traditionally is dated from the compact between Hamburg and Lübeck in 1241; the assembly last met in 1669. Compare hanshus "guild hall" (12c.).