Back-formation from pettifogger.
pettifog (third-person singular simple present pettifogs, present participle pettifogging, simple past and past participle pettifogged)
- To quibble over trivial matters; nitpick.
- Don't pettifog or we will soon grow weary.
- To do a petty business as a lawyer, or carry out law business in a petty or tricky way.
- S. Butler
- He is a common barreter for his pleasure, that takes no money, but pettifogs gratis.