1. petty; worthless:"the picayune squabbling of party politicians"
noun
1. a small coin of little value, especially a 5-cent piece.dated
▪ an insignificant person or thing.dated
Word Originearly 19th century: from French picaillon, denoting a Piedmontese copper coin, also used to mean ‘cash’, from Provençal picaioun, of unknown ultimate origin.