overlightly

adv

Etymology: From Middle English overlyghtly, over-lightly, equivalent to over- + lightly.

1. In an overlight manner; too easily or readily; frivolously

   “A prudent man doth not overlightly beleeve any thing, but laieth aside all reputation and credit of him that speaketh, and examineth the speech by it selfe: […]”

   “Mrs. Burton's conscience smote her not overlightly, and she hastened to change the subject, and to devote herself assiduously to Budge, as if to atone for some injury which she might have done to his brother.”