Answer: donder

AnswerCrossword Clue
DONDERThe "real" name of one of Santa's reindeer
DONDERCupid colleague
DONDERThunder: Dutch.
DONDERBlitzen's buddy
DONDERA Christmas reindeer
DONDERAirborne team member
DONDEROne of Santa's team
DONDEROne of Santa's reindeer, in "An American Anthology"
donderto thrash (to beat (to strike repeatedly))