bassoon

Bassoon entered English from French basson in the early 1700s. French basson meant a bass instrument, echoing the instrument's low register. The French form goes back to Italian bassone, a term for a large or low instrument. The augmentative -one marks size.

Italian bassone is built on basso "low," from Latin bassus. That root names the low register and the low voice in music. The instrument's long folded tube fits the idea of something large. The etymology aligns with its deep sound.

The instrument developed in the 1500s from earlier dulcians. By the 1600s, bassone was standard in Italian music. French basson and English bassoon followed as the orchestra standardized. English settled on the double-o spelling by the 1700s.

By the classical era, the bassoon was a core orchestral woodwind. Composers like Mozart and Haydn wrote prominent bassoon parts in the late 1700s. The word has stayed stable into modern usage. It now names the modern instrument and its relatives like the contrabassoon.