An eponym refers to a person after whom something is named. The name of the thing in question can also be referred to as an eponym. It can also be said to be eponymous. Eponymous is the adjective of an eponym. English has many eponymous words. Some examples are listed below together with their derivations.
Examples of Eponym
Cardigan is a knitted jacket fastened with buttons called after the Earl of Cardigan (1797-1868) who was fond of wearing such a garment. Earl of Cardigan was the British cavalry officer who led the unsuccessful ‘Charge of the Light Brigade’ during the Crimean War (1854).
Celsius is the temperature scale called after the Sweden astronomer, Anders Celsius (1701-1744).
Leotard is a one-piece, close-fitting garment worn by acrobats and dancers. It is called after the French acrobat, Jules Leotard (1842-1870). Jules Leotard introduced the costume as a circus garment.
Sandwich is a snack consisting of two pieces of buttered bread with a filling called after the Earl of Sandwich. The Earl of Sandwich (1718-1792) was such a compulsive gambler that he would not leave the gambling table to eat. He had some cold beef between two slices of bread brought to him.
The saxophone is a type of keyed brass instrument often used in jazz music called after Adolphe Sax (1814-1894). Adolphe is the Belgium instrument-maker who invented it.