sanitary (adj.)youdaoicibaDictYouDict[sanitary 词源字典]
1823, "pertaining to health," from French sanitaire (1812), from Latin sanitas "health," from sanus "healthy; sane" (see sane). In reference to menstrual pads, first attested 1881 (in sanitary towel).[sanitary etymology, sanitary origin, 英语词源]