walpurgis
/ˈwɔːlprɪɡɪs/Definitions
1. noun
a night of revelry and witchcraft, especially associated with the Germanic festival of spring, Walpurgis Night, which is said to occur on the eve of the feast of Saint Walpurgis (April 30th).
“The villagers would gather to dance and make offerings to ward off evil spirits on Walpurgis Night.”