Cavil

ˈkav(ə)l/
verb
verb: cavil; 3rd person present: cavils; past tense: cavilled; past participle: cavilled; gerund or present participle: cavilling; past tense: caviled; past participle: caviled; gerund or present participle:caviling
  1. 1.
    make petty or unnecessary objections.
    “they cavilled at the cost”
    synonyms: complain, carp, grumble, moan, grouse, grouch,whine, bleat, find fault with, quibble about, niggle about; More

noun
noun: cavil; plural noun: cavils
  1. 1.
    a petty or unnecessary objection.
Origin
mid 16th century: from French caviller, from Latin cavillari, from cavilla ‘mockery’.