Emily Dickinson Lexicon
Definition for TREACH-ER-OUS-LY
TREACH-ER-OUSTREACH-ER-OUS-NESS
TREACH-ER-OUS-LY, 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. – Otway.
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