The com- in comfortable was once a con —but that didn’t mean “not” as in pros and cons, it is a prefix that intensifies the main meaning of the word.

而com的部分曾经写作con，不过并不是pros and cons（利弊，正反）词组中con所代表的“否定”的意思，这个前缀实际上加强了单词的语气。

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"Marketing continues to expand, and the studios and distributors are looking for every opportunity to show upcoming movies to the most enthusiastic press and fan base, and Comic-Con is exactly that, " said David Gross of Moviereviewintelligence.com.

CNN: The long rollout: Studios build early buzz at Comic-Con