Note 1249 — Chapter III · : THE SOLIDARISTS
R. (Robert) Richards translation
Etymologically “solidarity” is a corruption of solidum, which was employed by the Roman jurists to signify the obligation incurred by debtors who were each held responsible for the whole amount of a debt. One would naturally expect the French derivative to be solidité, which was the term used by the jurists under the old régime, especially by Pothier. Solidarité was substituted for it by the editors of the Civil Code.