Define: A Fortiori

UK Accounting Glossary

Definition: A Fortiori

Quick Summary of A Fortiori

(ah-for-she-ory) prep. Derived from Latin, meaning for a still stronger reason; all the more.


Full Definition of A Fortiori

Applies to a situation in which a second thing can be inferred to be true if the first thing is true. Therefore, if Abel is too young to serve as administrator, his younger brother Cain is definitely too young.

[Latin, With stronger reason.] This phrase is used in logic to denote an argument to the effect that because one ascertained fact exists, therefore another which is included in it or analogous to it and is less improbable, unusual, or surprising must also exist.


Cite Term

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Page URL
Modern Language Association (MLA):
A Fortiori. Payroll & Accounting Heaven Ltd. March 28, 2020
Chicago Manual of Style (CMS):
A Fortiori. Payroll & Accounting Heaven Ltd. (accessed: March 28, 2020).
American Psychological Association (APA):
A Fortiori. Retrieved March 28, 2020, from website:

Definition Sources

Definitions for A Fortiori are sourced/syndicated and enhanced from:

  • A Dictionary of Economics (Oxford Quick Reference)
  • Oxford Dictionary Of Accounting
  • Oxford Dictionary Of Business & Management

This glossary post was last updated: 18th March 2020.