zuurzak

Etymology
Popular etymology, apparently from, in fact from two mismatched words.

Noun

 * 1)  The East Indian tree species  (chempedak)
 * 2)  The South American tree species  (custard apple; a soursop)
 * 3) The apple-shaped fruit of either above tropical tree
 * 1) The apple-shaped fruit of either above tropical tree