adjective, pert·er, pert·est.
Origin of pert
Examples from the Web for pertly
"That's what you read papa and everybody to sleep with," said Valetta pertly.The Long Vacation|Charlotte M. Yonge
"Oh, my aunt thought herself not smart enough to show herself before Mr. Somers," said Miss Betsy pertly.The Fairchild Family|Mary Martha Sherwood
"She sings much better than you do Grace," said Rose pertly.Isabel Leicester|Clotilda Jennings
“All the more reason to wish for it,” maintained Jill pertly.Betty Trevor|Mrs. G. de Horne Vaizey
Marjorie, her small face drawn with fatigue, but her eyes vivid with excitement, regarded him pertly.Four Days|Hetty Hemenway