E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Myrmidons of the Law.
Bailiffs, sheriffs officers, and other law menials. Any rough fellow employed to annoy another is the employers myrmidon.
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The Myrmidons were a people of Thessaly who followed Achilles to the siege of Troy, and were distinguished for their savage brutality, rude behaviour, and thirst for rapine.