consensus

The Latin consensus comes from con (together) and sentire (to feel or think). It is literally 'feeling together'—not unanimous agreement, but a shared perception among people with differing views. Cicero used consensus to describe how the Senate reached decisions. A senator could disagree with the outcome while acknowledging the collective sense that this was the right path.

When the word entered Old French and then Middle English by the 1400s, it brought this exact meaning with it. Consensus was not the same as unanimity. In fact, consensus could accommodate internal disagreement—the point was that people felt pulled in the same direction despite their doubts.

By the 20th century, the English meaning had narrowed. Consensus became almost synonymous with agreement. Unanimity and consensus started to sound like the same thing. The nuance was lost: the idea that you could feel the pull without fully believing in it, could sense the collective direction without abandoning your own judgment.

Now consensus usually means 'most people agree.' This is a compression of the original meaning. The Romans understood something we've forgotten: that true consensus is quieter, more ambiguous, and more honest than mere agreement. It's the sensation of moving together even when you're not entirely sure.