Consensus

google

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mid 17th century: from Latin, ‘agreement’, from consens- ‘agreed’, from the verb consentire .

wiktionary

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Borrowed from Latin cōnsēnsus(“agreement, accordance, unanimity”), from cōnsentiō(“feel together; agree”); see consent.

etymonline

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consensus (n.)

1854, "a general accord or agreement of different parts in effecting a given purpose," originally a term in physiology; 1861, of persons "a general agreement in opinion;" from Latin consensus "agreement, accord," past participle of consentire "feel together," from assimilated form of com "with, together" (see con-) + sentire "to feel" (see sense (n.)). There is an isolated instance of the word from 1633.