Interesting fact:

In the poem that introduces us to the other eight reindeer, “A Visit From St. Nicholas,” you’ll notice that their names are: Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Duner and Blixem. We more commonly now refer to Duner and Blixem as Donner and Blitzen, which happen to be the German words for thunder and lightning.