sputumyoudaoicibaDictYouDict[sputum 词源字典]
sputum: see spit
[sputum etymology, sputum origin, 英语词源]
sputum (n.)youdaoicibaDictYouDict
1690s, from Latin sputum, noun use of neuter past participle of spuere "to spit" (see spew (v.)).