"Sartorial"

When:

Lookups spiked on July 11, 2011.

Why:

The word appeared in numerous reports about the British royal couple's visit to North America.

For example:

"[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: Rukia13 / flickr