Definition of pantaloon
b
: a buffoon in pantomimes
2
pantaloons plural
a
: wide breeches worn especially in England during the reign of Charles II
b
: close-fitting trousers usually having straps passing under the instep and worn especially in the 19th century
3
: loose-fitting usually shorter than ankle-length trousers
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Merriam-Webster unabridged
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Time Traveler for pantaloon
The first known use of pantaloon was circa 1590
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