I recently saw someone using the expression "running the gambit".
This is a mistake; the correct expression is "run the gamut".
GAMUT
But what is a gamut, anyway?
Back in the middle ages, a scale extending from low G of the modern bass clef to the upper E of the modern treble clef included all the notes generally used in medieval music. This low G was what we would call "do" of the scale, but the word "do" didn't exist at the time. "Ut" was the medieval equivalent of our "do". Like the other names of
the notes in our modern-day scale, it came from the initial syllable in a line of a hymn for St John the Baptist's day:
Ut queant laxis
resonare fibris
Mira gestorum
famuli tuorum,
Solve polluti
labii reatum,
Sancte Iohannes
So, to indicate that this low G was the tonic note, it was called "gamma-ut". This got squished together as "gamut" and also came to be used to designate the whole scale.
(Over
time, it became clear that "ut" was not a syllable that lent itself to
singing, so the Italians replaced it with "do" in the 1600s. "Si" became "ti" in the 19th century to avoid having two notes starting with S.)
In French, the word for a musical scale is to this day gamme. Our first evidence of the word "scale" (derived from the Italian word scala, a ladder) in this sense comes from the Tudor composer Thomas Morley:
1597 T. Morley 7
Phi. Why then was your Scale deuised of xx notes and no more? Ma. Because that compasse was the reach of most voyces: so that vnder Gam vt the voice seemed as a kinde of humming, and aboue E la a kinde of constrained shrieking.
Constrained shrieking! I love it. (Sorry, sopranos.)
I always laugh when I consult musical entries in the Oxford English Dictionary and come across the title of this book. As one of my colleagues at the Canadian Oxford Dictionary liked to call it: "Thomas Morley's Renaissance Polyphony for Dummies".
Even though it lost out to "scale" in music, "gamut" survived in an extended figurative sense meaning "the entire range", and people have been "running the gamut" increasingly frequently since the early 19th century.
GAMBIT
"Gambit", on the other hand, is originally a chess term, designating a sequence of moves, involving a sacrifice to launch an attack or gain some other advantage.
The Oxford English Dictionary has this informative etymology, in which you can almost see the etymology editor puffing on a pipe reflectively between the two sentences:
Probably a borrowing from Spanish. Or perhaps a borrowing from Italian.
That non-committal etymology editor does conclude that ultimately the word comes from 14th-century Italian gambetto (a tripping up in wrestling), from gamba (leg). The word came into English in the chess sense in the 1600s, and two hundred years later took on the meaning of a plan, stratagem, or ploy that is calculated to gain an advantage, especially at the outset of a contest, negotiation, etc.
PRONUNCIATION
For many years in my youth, when I was familiar with "run the gamut" only in writing, I pronounced "gamut" as "ga-MUTT". (Have you ever pronounced it this way, or is it just me?) It came as quite a shock when I realized that it is actually pronounced "GAMM utt" and that I was, gasp, wrong.
I still like "ga-MUTT" better, though. Perhaps it would save people from confusing it with "gambit".
Photo credit: JESHOOTS.COM
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