Treacherously
Easton’s Bible Dictionary & Webster’s 1828 Dictionary · Matthew George Easton, Noah Webster
Treacherously - (Webster's 1828 Dictionary)
TREACHEROUSLY, adv. trech'erously. By violating allegiance or faith pledged; by betraying a trust; faithlessly; perfidiously; as, to surrender a fort to an enemy treacherously; to disclose a secret treacherously.
You treacherously practic'd to undo me.
Source of the article
Matthew George Easton, Easton’s Bible Dictionary; Noah Webster, American Dictionary of the English Language (1828)
Bible Strong combined digital edition