בְּסִימָא, בִּסְמָא m. (v. preced. 2) fermenting wine, wine turned into vinegar. Lam. R. to III, 40 אין דעולית׳ מרירן בסימא חמיע Ar. (ed. אית כרנבי ב׳ דסימא חמיע; read אין דכר׳, strike out דסימא) when the endive (the cabbage) is bitter, the fermenting wine turns sour (sin begets sin). Cant. R. end, if the vineyard is cut before its time, אפי׳ בִסְמֵיה וכ׳ even its vinegar is not good.