ratio decidendi

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ratio decidendi

Where it comes from

Borrowed from Medieval Latin ratiō dēcidendī, from ratiō (“reckoning, method, reasoning”) + dēcidendī, genitive singular of dēcidendus, gerund of dēcidere (“to settle”).

noun rationes decidendi

The legal principle or rationale on which a judicial decision is based.

Translations

Every language

noun legal principle on which judicial decision is based

中文	判決依據 /判决依据 pànjué yījù
Ελληνικά	σκεπτικό skeptikó

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MLA

"ratio decidendi." Wiktionary, via Micwyn, micwyn.com/word/ratio%20decidendi. Accessed 6 Nov. 2026.

APA

ratio decidendi. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/ratio%20decidendi

Chicago

"ratio decidendi." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/ratio%20decidendi.

BibTeX

@misc{ratio_decidendi_2026,
  title = {ratio decidendi},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/ratio%20decidendi},
  urldate = {2026-11-06}
}