verjuice

1. (transitive) To render something sour; to embitter.Examples: "There are few names to which a jingle or a joke cannot be fitted—witness, Twining, banker and tea-dealer: / ‘Twining would be whining / Were’t not for his tea;’ / and the ex-Lord Mayor, Sir John Key, where the inherent rhyme to ‘donkey’ verjuiced the baronetcy."transitive