What English word does 구락부 sound like?

 ANSWER: Club?

구락부 (俱樂部) is a somewhat outdated Sino-Korean word for "club." It literally means "together (俱) enjoy (樂) group (部)," which can translate as either "club," "clubhouse," "fraternity," or "sorority." The word was created not only to represent the meaning of the word "club," but also to sound similar in pronunciation. Today, however, younger Koreans tend to say and write 클럽 (club), which is closer in pronunciation to the English word.

By the way, the Sino-Korean word for Europe is 구라파 (歐羅巴), which was created by the Chinese to sound similar to "Europa," the name of a Phoenician princess in Greek mythology from whom the continent of Europe gets its name. The Chinese pronunciation of the characters are similar to 어우 (歐) 로 (羅) 바 (巴), which sounds closer to the English pronunciation of "Europa" than the Korean does. The Chinese characters can literally translate as "vomit (歐) spreading (羅) snake (巴)," though maybe that was not the intended meaning. 

From Dong-A's Prime Korea-English Dictionary