LegoyoudaoicibaDictYouDict[Lego 词源字典]
1954, proprietary name (in use since 1934, according to the company), from Danish phrase leg godt "play well." The founder, Ole Kirk Christiansen, didn't realize until later that the word meant "I study" or "I put together" in Latin.[Lego etymology, Lego origin, 英语词源]