Etymology
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at bay (prep.)
late 14c., originally often at the bay; see bay (n.3). Figurative use, of human beings in difficulties, is from c. 1400. The expression reflects the former more widespread use of at. The earlier form of the phrase was at abai, used of hunted animals, "unable to escape," c. 1300, from French.
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Hong Kong 
former British colony in China, from Cantonese pronunciation of Chinese Xianggang, literally "fragrant port." Perhaps so called from the scent of incense factories or opium cargoes, or from the semi-fresh waters of the bay. The Cantonese word hong, literally "row, series" was the general English term for foreign trading establishments in China (warehouse viewed as a row of rooms).
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