却病延年 quèbìngyánnián to prevent disease and prolong life Origin Definitions Defs Strokes Stroke Words Sentences Sents 却病 卻病 quèbìng to prevent or cure disease (literary) to prevent, treat, or eliminate a disease; to stay healthy and ward off illness延年 yánnián to prolong life To extend one's lifespan; to live longer.