A financier is someone who handles big clients and big financial transactions. A financier is the high-profile star of a company and the envy of the overworked entry-level workers.
The suffix -ier in financier tells you that this word refers to a person who has something to do with finance. But where does the word finance come from? Long ago, it meant "to settle or end a debt," which you can see in fin, the Old French word for "end." But as financial work evolved, it came to also encompass taxation and revenue, not just debt collection.
