
1) Ancient musical instrument 2) Brass instrument 3) Early musical instrument 4) French word used in English 5) Trombone 6) Trombone forerunner
Found on
https://www.crosswordclues.com/clue/sackbut

A sackbut is a trombone from the Renaissance and Baroque eras, i.e. a brass instrument, similar to the trombone and characterised by a telescopic slide with which the player varies the length of the tube to change pitches, thus allowing them to obtain chromaticism, as well as easy and accurate doubling of voices. Sackbuts could adjust tuning at th...
Found on
http://en.wikipedia.org/wiki/Sackbut

early wind instrument resembling the trombone
Found on
http://phrontistery.info/s.html

• (n.) A brass wind instrument, like a bass trumpet, so contrived that it can be lengthened or shortened according to the tone required; -- said to be the same as the trombone.
Found on
http://thinkexist.com/dictionary/meaning/sackbut/

(from Old French saqueboute: `pull-push`), early trombone, invented in the 15th century, probably in Burgundy. It has thicker walls than the modern ...
Found on
http://www.britannica.com/eb/a-z/s/3
Sack'but noun [ French
saquebute , Old French
saqueboute a sackbut, earlier, a sort of hook attached to the end of a lance used by foot soldiers to unhorse cavalrymen; prop. meaning, pull and push; from
saquier ,
sachier , to pull, draw (perhaps originally, to put into a bag ...
Found on
http://www.encyclo.co.uk/webster/S/3

The sackbut was a musical instrument of the brass family, developed during the 14th century, like a bass long trumpet, so contrived that it can be lengthened or shortened according to the tone required. The trombone developed from the sackbut. The sackbut of the Scriptures was a stringed instrument, the translators of the King James bible having be...
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http://www.probertencyclopaedia.com/browse/VS.HTM

[
n] - a medieval musical instrument resembling a trombone
Found on
http://www.webdictionary.co.uk/definition.php?query=sackbut
noun a medieval musical instrument resembling a trombone
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.