I was watching Walking Dead season 2 and one of the characters used a word that I hadn't heard before. Anyone recently run across odd words that aren't normally used?

ca·thar·sis
kəˈTHärsis/
noun
noun: catharsis; plural noun: catharses

1.
the process of releasing, and thereby providing relief from, strong or repressed emotions.

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"BOY: On a hot summer night, would you offer your throat to the wolf with the red roses? GIRL: Will he offer me his mouth? BOY: Yes. GIRL: Will he offer me his teeth? BOY: Yes. GIRL: Will he offer me his jaws? BOY: Yes. GIRL: Will he offer me his hunger? BOY: Yes. GIRL: Again, will he offer me his hunger? BOY: Yes! GIRL: Yes. BOY: On a hot summer night, would you offer your throat to the wolf with the red roses? GIRL: Yes. BOY: I bet you say that to all the boys!" -Meatloaf