Common Logical Fallacies Explained in Latin
When we talk about bad arguments, manipulation, or faulty reasoning, Latin appears just as often—though usually in a more confrontational way. Terms like ad hominem, post hoc, or non sequitur
Latin never really disappeared.
Many Latin expressions are still part of everyday educated language, especially in law, philosophy, and academic writing. Phrases like ad hoc, per se, or status quo are familiar—but their meaning is often taken for granted.
This poster is meant as a quick reference: a small collection of essential Latin phrases with clear, accurate explanations. The goal isn’t to show off, but to make these expressions easier to recognize, understand, and use with confidence.
If this kind of clarity appeals to you, learning Latin itself is a natural next step. My online course Latin I: First Steps begins from the basics and uses Familia Romana by Ørberg with the direct method, focusing on reading and understanding Latin directly in context, rather than relying on constant translation.
Latin is far less intimidating than it seems—and far more rewarding than most people expect.
When we talk about bad arguments, manipulation, or faulty reasoning, Latin appears just as often—though usually in a more confrontational way. Terms like ad hominem, post hoc, or non sequitur
When we talk about logic and argumentation, we often use Latin without noticing. Expressions like ergō, ā priori, or prima facie appear in philosophy, law, academic writing, and even everyday