During the British royal couple's visit to North America ...
Lookups spiked on July 11, 2011.
The word appeared in numerous reports about the British royal couple's visit to North America.
"[Kate Middleton] understands the sartorial demands of her role and how to project her personal taste and even her personality to a world the palace is not yet letting her publicly, verbally address." - Amy Odell, New York Magazine, July 11, 2011
Sartorial is a somewhat formal word that means "of or relating to clothes."
It comes from the Latin sartor, "tailor."
Photo credit: Rukia13 / flickr