PIE Rainbow

From: João Simões Lopes Filho
Message: 4329
Date: 2000-10-13

Is there any PIE word for "rainbow"?
 
How is "rainbow' in Latin, Greek, Celtic, Germanic, Balto-Slavic, Indo-Iranian, Hittite and Armenian?
 
Is there any mythological trait?
 
Joao SL
Rio