catenary (adj.)youdaoicibaDictYouDict[catenary 词源字典]
1872, from Latin catenarius "relating to a chain," from catenanus "chained, fettered," from catena "chain, fetter, shackle" (see chain (n.)). As a noun from 1788 in mathematics. Related: Catenarian.[catenary etymology, catenary origin, 英语词源]