poundage

This word can refer to weight, especially the total weight of something. It can also mean a charge based on weight, such as a fee paid per pound for goods or shipping. In legal and financial use, it may mean a commission or fee figured as a percentage of money, especially in older British usage. The word now sounds formal or old-fashioned in many everyday situations.

Poundage is an old word with several related meanings. In the most direct sense, it can mean weight measured in pounds, or the total number of pounds something weighs. It also came to mean a payment or charge made by the pound, such as a fee for weighing goods or a rate based on weight.

From there, the word developed a legal and financial meaning. In older British use, poundage could mean a commission or fee calculated on a sum of money, often as a percentage. This sense appears in matters such as debt collection, sheriff's fees, and some estate or court payments. Here, the idea is not physical weight but a charge worked out by reference to pounds as money.

The word also appears in history in the phrase "tonnage and poundage," the name of old customs duties in Britain. Because of that background, poundage often carries an official, legal, or historical tone rather than an everyday one.

So when you meet this word, it usually points to one of three ideas: weight, a charge based on weight, or a fee or duty figured from an amount of money. The exact meaning depends on the context, but all of them connect to the basic idea of counting by pounds.