Plural of guitarist; multiple people who play the guitar.
From 'guitar' (the stringed instrument, from Spanish 'guitarra,' from Arabic 'qitara') + '-ist' (one who practices or specializes in). The suffix '-ist' comes from Latin '-ista.'
The word 'guitarist' is relatively new — before the 20th century, guitar players were usually just called 'guitar players,' and the '-ist' suffix became standard as guitars became more formal instruments in orchestras and concert halls.
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