Obsession with killing.

(Source: http://www.dictionarist.com/dacnomania) 

The act or habit of describing or regarding something as unimportant, of having no value or being worthless. 


(Source: http://en.wiktionary.org/wiki/floccinaucinihilipilification)

The act or posture of reclining on a couch, as practiced by the ancients at meals. 


(Source: http://en.wiktionary.org/wiki/accubation)

Similar to idolatry and iconodulism, epeolotry literally means the worship of words. It derives from ἔπος épos, which unlike λόγος lógos more specifically means word in Greek, and was apparently coined in 1860 by Oliver Wendell Holmes, Sr.[1] You may be hard-pressed to find an admitted epeolatrist because the term connotes a sort of blind devotion, sanctimony, or hypocrisy; or more specifically, an advanced form of reification. Figuratively speaking, the word can be playfully applied to philologists, linguists, or lexicographers.

The term is of significant satirical value and may be used in the denigration of popular religions or belief systems. For example, one could call Christianity an epeolotric religion because the majority of its teachings hinge on the words of the Hebrew Bible.

(Source: http://en.wikipedia.org/wiki/Epeolatry)