Trombone

google

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early 18th century: from French or Italian, from Italian tromba ‘trumpet’.

wiktionary

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Borrowed from Italian trombone, from tromba(“trumpet”) +‎ -one(augmentative), literally “large trumpet”. The telecommunications sense alludes to the shape of the musical instrument.

etymonline

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trombone (n.)

brass wind instrument, 1724, from Italian trombone, augmentative form of tromba "trumpet," from a Germanic source (compare Old High German trumba "trumpet;" see trumpet (n.)). German Posaune "trombone" is from Old French buisine, from Latin buccina, bucina "a (crooked) trumpet."