IPA: /ˈkæv.ɪ.lər/
KK: /ˈkævɪlər/
A person who makes petty or trivial objections or criticisms.
The caviller always found something to complain about, no matter how good the situation was.
Caviller → The word originates from the French 'caviller', meaning to quibble or raise petty objections. It describes a person who makes trivial or frivolous objections.
Think of someone who is always 'quibbling' or making 'petty objections' — that's what a caviller does.