Japanese word "Divine wind".
In Japanese
history, Japan had only a few crises to be invaded by foreign forces, twice by Mongolians and once by the USA.
When the Mongolian empire was at
peak, Fubirai Kahn, a grandchild of Genghis Kahn, attempted to conquer Japan in 1274 and 1281 with massive forces. In both occasions, divine force, perhaps typhoon, destroyed Mongolian forces at sea. Since then, there was a belief that Japan was protected by divine force.
During the World War
II, when Japan was loosing, Japanese
air force adapted desparite suicidal attacks and named kamikaze after the divine wind.