Ratio decidendi
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 The legal principle or rationale on which a judicial decision is based.
Etymology
Borrowed from Medieval Latin ratiō dēcidendī, from ratiō (“reckoning, method, reasoning”) + dēcidendī, genitive singular of dēcidendus, gerund of dēcidere (“to settle”).