consent
Pronunciation: /kənˈsɛnt/
noun
verb

Phrases
-
by common consent
- with the agreement of all: it was, by common consent, our finest performance
-
informed consent
- permission granted in full knowledge of the possible consequences, typically that which is given by a patient to a doctor for treatment with knowledge of the possible risks and benefits: written informed consent was obtained from each patient

Origin:
Middle English: from Old French consente (noun), consentir (verb), from Latin consentire, from con- 'together' + sentire 'feel'