from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. With or in bad faith.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. in bad faith
from The Century Dictionary and Cyclopedia
- n. With bad faith; deceitfully; treacherously: opposed to bona fide.
Latin malā fidē : malā, feminine ablative of malus, bad + fidē, ablative of fidēs, faith.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin. The word mala, which is the ablative feminine of the word malus (meaning "bad") + fide, the ablative of fides meaning "faith". Literally meaning "in bad faith". (Wiktionary)