ETYM French, from Latin sine without.
(French) prep. “without”. sans-culotte, “without trousers”; violent or low-class French revolutionary. sans gęne, “without trouble”; unembarrassed; familiarity. sans peur et sans reproche, “without fear and without reproach”, applied to perfect knight of chivalry. sans serif, “without serif”. sans souci, “without worry”; condition of indifference or carefreeness.(Rare) Without; deprived or destitute of.
2. Used as a function word to indicate the absence or lack of something or someone