bank

Few English words pack two such different pictures into one spelling as bank does — and the surprise is that the two pictures are really the same shape: a long, raised, flat surface.

The older picture is the earth bank. From Old Norse bakki came the sense of a ridge or slope — the raised lip of land where water and ground meet. A riverbank is that sloping edge; an embankment is a bank built up on purpose to hold water back or carry a road. Even the verb 'the plane banked' (tilted into a turn) comes from this — the plane leans as if climbing a slope. This is bank as landscape.

The second picture is the money bank, and it arrived through Italy. Medieval money-changers worked in the open marketplace at a long bench or table — Italian banca, 'bench.' To do business with the money-changer was to deal 'at the bench,' and the bench's name slid onto the institution itself. That is why we still say bank for the place your money sits, banker for the person, banking for the trade, and banknote for the paper the bank issues. A bankbook records what the bench is holding for you.

The most vivid words come from what could happen at that bench. When a money-changer could no longer pay his debts, his bench was smashed in public — Italian banca rotta, 'broken bench' (rotta from Latin ruptus, 'broken,' the same root as rupture). English took it as bankrupt: the broken-bench man, and then bankruptcy, the legal state of having one's bench broken. We now stretch it figuratively — 'morally bankrupt' means as empty as a smashed bench that can hold nothing.

A stranger relative is mountebank. Italian montambanco meant 'one who mounts the bench': the quack who climbed onto a bench in the square to draw a crowd and sell fake cures. 'Standing up on the bench to sell' hardened into 'swindler.'

So whenever you see bank, ask which raised flat surface it is: a slope of earth (riverbank, embankment), or a money-changer's bench (banker, bankrupt, mountebank). Same shape, two worlds.