malignity
Malignity (noun) means Deep wickedness or a strong desire to cause harm.
Etymology
Came into English as Middle English malignete, malignitee, malignyte, malyngnite, from Middle French maligneté, from Latin malignitās; by surface analysis it breaks down as malign + -ity. In the sense “a group of goblins”, the word was coined by David Malki in the 30 October 2009 Wondermark webcomic strip “Supernatural Collective Nouns”.