A trifling sum of money is a small amount of money, usually not enough to make a significant difference. This term can be broken down into four words: SOU (3 letters), MITE (4 letters), GROAT (5 letters), and CENT (4 letters). SOU is an old English coin worth one twentieth of a pound, MITE is an obsolete English coin worth half a farthing, GROAT is an old English coin worth four pence, and CENT is a modern American coin worth one hundredth of a dollar. Together, these four words represent a very small amount of money.