It has to do with the atmosphere patterns followed by meteorological phenomena
Rainbows are formed in the rain so rain and bow because it may be some form of a bow.
Dajour ..
at a rain bow
A rainbow appears in the shape of an arc because sunlight is refracted, reflected, and dispersed by water droplets in the atmosphere. The specific angle at which the sunlight is refracted and reflected back to our eyes creates the characteristic bow shape of a rainbow.
Bow Group was created in 1951.
The Bronze Bow was created in 1961.
Bow Hill was created in 1975.
His Last Bow was created in 1917.
I Will Not Bow was created on 2009-08-11.
2 rain-bow
you cant
you can,t