Consensus facit jus
Defined in 1 dictionary — Stimson (1881)
Glossary of Technical Terms, Phrases, and Maxims of the Common Law
Frederic Jesup Stimson · 1881
Consent makes law. Consensus, non concubitus, facit matrimonium: consent (agreement of marriage), not consummation, makes marriage. Consensus tollit errorem: consent removes error [the acquiescence of a party who might take advantage of an error obviates its effect].