YA-KU-SA

Etymology

The term "Yakuza" comes from a Japanese card game, Oicho-Kabu (played with hanafuda or kabufuda cards). The worst hand in the game is a set of eight, nine and three. In traditional Japanese forms of counting, these numbers are called Ya, Ku and Sa, thus the origin of the word "yakuza." The yakuza took this name because the Ya-Ku-Za hand requires the most skill (at judging opponents, etc.) and, obviously, the best luck in order to win. The name was also used because it signified bad fortune, presumably for anyone who went up against the group.