[积 / 積, jī, ㄐㄧ]to amass; to accumulate; to store; measured quantity (such as area of volume); product (the result of multiplication); to integrate (math.); to solve (or integrate) an ordinary differential equation (math.); old; long-standing#4063[Add to Longdo]
[积非成是 / 積非成是, jī fēi chéng shì, ㄐㄧ ㄈㄟ ㄔㄥˊ ㄕˋ]a wrong repeated becomes right (成语 saw); a lie or an error passed on for a long time may be taken for the truth#341209[Add to Longdo]