Kajikimagurō means "swordfish[http://en.wikipedia.org/wiki/Swordfish Swordfish]". His English anime name, Mako, originates from the mako shark"[http://en.wikipedia.org/wiki/Shortfin_mako_shark Mako Shark]", and a tsunami "[http://en.wikipedia.org/wiki/Tsunami Tsunami]" is a type of large wave formed by earthquakes or volcanic eruptions.