You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
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Question: Category: ENGLISH USAGE 
Clue: Latin for "thus", this 3-letter word is put in brackets to indicate an error in a quote

Answer: sic


Question: Category: LANGUAGES 
Clue: It's the official language of the country where we taped our International Tournament in 1997

Answer: swedish


Question: Category: WE "URN" IT 
Clue: Technically it's caused by gastroesophageal backflow

Answer:
heartburn