Threadneedle Street

A corruption of Thryddanen or Thryddenal Street, meaning third street from “Chepesyde” to the great thoroughfare from London Bridge to “Bushop Gate” (consisting of New Fyshe Streate, Gracious Streate, and Bushop Gate Streate). (Anglo-Saxon, thrydda or thrydde, third.)

Another etymology is Thrig-needle (three-needle street), from the three needles which the Needlemaker's Company bore in their arms. It begins from the Mansion House, and therefore the Bank stands in it.

The Old Lady in Threadneedle Street.

The directors of the Bank of England were so called by William Cobbett, because, like Mrs. Partington, they tried with their broom to sweep back the Atlantic waves of national progress.

“A silver curl-paper that I myself took off the shining locks of the ever-beautiful old lady of Threadneedle Street [a bank-note].” —Dickens: Dr. Marigold.

Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894

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