petit jury vs petty jury

petit jury and petty jury both are nouns.

Word	Noun	Adjective	Verb	Adverb
petit jury	Yes	No	No	No
petty jury	Yes	No	No	No

As nouns, petit jury and petty jury are synonyms defined as:

petit jury and petty jury: a jury of 12 to determine the facts and decide the issue in civil or criminal proceedings

petit jury (noun)	petty jury (noun)
a jury of 12 to determine the facts and decide the issue in civil or criminal proceedings	a jury of 12 to determine the facts and decide the issue in civil or criminal proceedings