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Knickers is actually a standard word for underwear, mainly in Britain, but we include it here because of its surprising connection to professional basketball.
"Knickers" derives from "knickerbockers," or "loose-fitting short pants gathered at the knee." Because the city's early Dutch settlers wore those pants, "New Yorkers" became known as "Knickerbockers."
And The Knickerbockers, of course more commonly "The Knicks" is the name of New York's NBA team.