lament (v.)youdaoicibaDictYouDict[lament 词源字典]
mid-15c., back-formation from lamentation or else from Middle French lamenter "to moan, bewail" (14c.) and directly from Latin lamentari, from lamentum (see lamentation). Related: Lamented; lamenting.[lament etymology, lament origin, 英语词源]
lament (n.)youdaoicibaDictYouDict
1590s, from Middle French lament and directly from Latin lamentum (see lamentation).