Indian plum
/ˌɪndɪən ˈplʌm/noun
Any of several trees or shrubs bearing plumlike fruit, especially the myrobalan or cherry plum, Prunus cerasifera, of eastern Europe and South Asia and ( North American ) the osoberry, Oemleria cerasiformis, of North America.
Origin
Mid 17th century; earliest use found in William Davenant (1606–1668), poet, playwright, and theatre manager. From Indian + plum.