quarrel vs pettifoggery

quarrel and pettifoggery both are nouns.

Word	Noun	Adjective	Verb	Adverb
quarrel	Yes	No	Yes	No
pettifoggery	Yes	No	No	No

As nouns, pettifoggery is a hyponym of quarrel; that is, pettifoggery is a word with a more specific, narrower meaning than quarrel:

Other hyponyms of quarrel include affray, altercation, fracas, bicker, bickering, fuss, spat, squabble, tiff, bust-up.

quarrel (noun)	pettifoggery (noun)
an arrow that is shot from a crossbow; has a head with four edges	a quarrel about petty points
an angry dispute

quarrel (verb)	pettifoggery (verb)
have a disagreement over something