Cardinal Points: Vesper and Shower

From: Joao
Message: 34240
Date: 2004-09-22

Latin vesper and Greek hespero points to a PIE *wesperos "evening, west, sunset". It seems perfect. Too perfect. Is there some possibility that or Italic *vesperos or Proto-Greek *wesperos were borrowed from one to another? I think it's strange that so clear roots is not present in another IE language.
Germanic has a cognate *westaz, with an anomalous Gothic visi- (<*west-si-?).
What are the another IE cognates of this root *wes-?
 
What are the cognates of Germanic *sku:raz "shower" and Russian sever "north"?
 
 
Joao SL