Etymology Compound of zuur (“sour, unpleasant”) + pruim (“plum”). Pronunciation IPA(key): /ˈzyːr.prœy̯m/ Audio:(file) Hyphenation: zuur‧pruim Noun zuurpruim f or m (plural zuurpruimen, diminutive zuurpruimpje n) A sourpuss, grouch. Related terms verzuren