slovenly (adj.)youdaoicibaDictYouDict[slovenly 词源字典]
1510s, "low, base, lewd," later "untidy, dirty" (1560s), from sloven + -ly (1). Related: Slovenliness; also in this sense was slovenry (1540s), which OED reports in common use early 17c.[slovenly etymology, slovenly origin, 英语词源]