Dictionary entry

Falsely

Webster's Dictionary 1913

False″ly (?), adv. In a false manner; erroneously; not truly; perfidiously or treacherously. “O falsely, falsely murdered.” Shak.

Oppositions of science, falsely so called. 1 Tim. vi. 20.

Will ye steal, murder... and swear falsely? Jer. vii. 9.