A damson is a small plum, dark purple, almost black, and quite sharp on the tongue — more sour and bitter than the sweet plums in a fruit bowl. People cook them more than they eat them raw: jam, a thick fruit paste sometimes called damson cheese, and gin. The tree is common in British gardens and hedges, so you will hear the word more in British English than on an American shop sign. Though actually, the name is not a swear and has nothing to do with damn. It comes from Damascus: Latin called this fruit the plum of Damascus. The plum you usually buy in Taiwan is a fatter, sweeter cousin. A damson is the small, dark, tart one.

西洋李、黑李（紫黑、偏酸的小李子）