saucily (adv.)
presumptuously, cheekily, impudently
KL I.i.20 [Gloucester to Kent, of Edmund] this knave came something saucily to the world
KL II.iv.40 [disguised Kent to Lear, of the messenger] which of late / Displayed so saucily against your highness
Luc 1348 [of such as Lucrece's groom] Such harmless creatures have a true respect / To talk in deeds, while others saucily / Promise more speed, but do it leisurely