This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The exercise of morbid perseverance and energy in the prosecution of a project, especially one of a political or religious nature; a form of monomania sometimes manifesting itself in overzeal in attempts to gain supporters to any public cause.

"Animi dolores et zelotypia si diutius perserverent, dementes reddunt."