What does "cavil" mean?

Cavil: To raise captious and frivolous objections; to find fault without good reason. You do not well in obstinacy To cavil in the course of this contract. Shak.

Additional senses

  1. 2.To cavil at. [Obs.] Milton.
  2. 3.A captious or frivolous objection. All the cavils of prejudice and unbelief. Shak.
  3. 4.One who cavils. Cavilers at the style of the Scriptures. Boyle.

Sources