Latin

Adverb

fallāciter ‎(comparable fallācius, superlative fallācissimē)

1. deceptively, deceitfully
2. falsely

References

• fallaciter in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• fallaciter in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• Félix Gaffiot (1934), “fallaciter”, in Dictionnaire Illustré Latin-Français, Paris: Hachette.