Also 8 lungung, 2 lungan, lung-yen. [Chinese lung-yen, lit. dragons eye, f. lung dragon + yen eye.] The fruit of an evergreen tree, Nephelium Longanum, cultivated in China and the East Indies; also, the tree itself.
1732. S. Baron, Descript. Tonqueen, in Churchills Voy., III. 4. The fruit called Jean or Lungung (that is, Dragons eggs [sic]) by the Chinese.
1846. Lindley, Veg. Kingd., 383. Thus the Longan, the Litchi, and the Rambutan, fruits among the more delicious of the Indian archipelago, are the produce of different species of Nephelium.
1869. I. Burns, Life W. C. Burns, xix. (1870), 502. No house could be had for divine service, and they had to gather under the shade of a magnificent lung-yen tree.
1874. S. W. Williams, Dict. Chinese, 567. Lung-yen, the longan fruit (Nephelium Longan).