different between falsify vs fallacious

English

Etymology

From French falsifier, from Late Latin falsific?re, present active infinitive of falsific? (“make false, corrupt, counterfeit, falsify”), from Latin falsificus, from falsus (“false”), corresponding to false +? -ify.

Pronunciation

• IPA^(key): /?f?ls?fa?/

Verb

falsify (third-person singular simple present falsifies, present participle falsifying, simple past and past participle falsified)

1. (transitive) To alter so as to make false; to make incorrect.

   • The Irish bards use to forge and falsify everything as they list, to please or displease any man.

2. (transitive) To misrepresent.
3. (transitive) To prove to be false.
   • 1730, Joseph Addison, The Evidences Of The Christian Religion

     Jews and Pagans united all their endeavors, under Julian the apostate, to baffle and falsify the prediction.

4. (transitive) To counterfeit; to forge.

5. (transitive, accounting) To show (an item of charge inserted in an account) to be wrong.
   • 1833, Joseph Story, Commentaries on the Constitution of the United States

     It will allow the account to stand, with liberty to the plaintiff to surcharge and falsify it

   • 1912, Peyton Boyle, The Federal Reporter: Cases Argued and Determined in the Circuit District Courts of the United States

     The chancery rules governing proceedings to surcharge and falsify accounts are applicable only where an account has been stated between the parties, or where something equivalent thereto has been done.

6. (transitive, obsolete) To baffle or escape.
   • a. 1680, Samuel Butler, Fragments of an intended second part of the foregoing satire

     For disputants (as swordsmen use to fence / With blunted foyles) engage with blunted sense; / And as th' are wont to falsify a blow, / Use nothing else to pass upon a foe […]

7. (transitive, obsolete) To violate; to break by falsehood.

Derived terms

Related terms

Translations

Further reading

• falsify in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• falsify in The Century Dictionary, New York, N.Y.: The Century Co., 1911.

English

Etymology

fallacy +? -ous.

Pronunciation

• IPA^(key): /f?.?le?.??s/
• Rhymes: -e???s

Adjective

fallacious (comparative more fallacious, superlative most fallacious)

1. Characterized by fallacy; false or mistaken.
2. Deceptive or misleading.

Usage notes

• Nouns often used with "fallacious": argument, reasoning, etc.

Related terms

• fail
• failure
• fallacy
• fallibilism
• fallibilist
• fallibility
• fallible
• false
• falsifiable
• falsification
• falsificator
• falsifier
• falsify
• falsity

Translations

See also

• wrong
• incorrect
• illogical
• deceiving
• deceitful
• misleading
• delusive
• illusive
• illusory
• erroneous
• faulty
• specious

Further reading

• fallacious in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• fallacious in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• fallacious at OneLook Dictionary Search