slughorn

Etymology
See. Sense 1 (“wind instrument”) is due to an incorrect use of the word slughorn (sense 2: “battle cry”) by the English poet (1752–1770) in his 1760s pseudo-Medieval poetry. He described the fictional instrument in footnotes as “warlike instruments of music” (Ælla, a Tragycal Enterlude), “a musical instrument not unlike a hautboy” (Eclogue the Second), and “war trumpets” (Battle of Hastings (No. 2)). The erroneous sense was then continued by the English poet and playwright (1812–1889) in his 1855 poem . The use by English author (1948–2015) in 1989 is a deliberate allusion to Chatterton.

Noun

 * 1)  A wind instrument.