- supernatant (adj.)
[supernatant 词源字典]
- "floating on the surface," 1660s, from Latin supernatantem (nominative supernatans), present participle of supernatare "to swim above," from super (see super-) + natare "to swim," frequentative of nare "to swim" (see natatorium). Related: Supernatation (1620s).[supernatant etymology, supernatant origin, 英语词源]