cum hoc ergo propter hoc

noun

The logical fallacy of assuming that two events that occur at the same time have a cause-and-effect relationship.

Opposite
post hoc ergo propter hoc
OriginLatin cum hoc ergo propter hoc →
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nouncum hoc ergo propter hoc (uncountable)
  1. rhetoricuncountablehuman sciencesThe logical fallacy of assuming that two events that occur at the same time have a cause-and-effect relationship.

Synonyms & antonyms

Opposite
post hoc ergo propter hoc

Origin

  1. Latincum hoc ergo propter hoc“with this, therefore because of this”
  2. Englishcum hoc ergo propter hoc

From Latin cum hoc ergo propter hoc (“with this, therefore because of this”).

More words from Latin

Full word history & related roots →
Cite this entry
APA

cum hoc ergo propter hoc. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/cum%20hoc%20ergo%20propter%20hoc

MLA

“cum hoc ergo propter hoc.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cum%20hoc%20ergo%20propter%20hoc. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “cum hoc ergo propter hoc,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/cum%20hoc%20ergo%20propter%20hoc.

Source: cum hoc ergo propter hoc on Wiktionary, CC BY-SA 4.0.